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has Quantum
computinG
finallY
aRRiVed?
Upfront p2
how
tomoRRows
staRtups will
be funded
Business Report p7
tech
tRansfoR
music, aRt
and pRos
Reviews p87
Buzz Aldrin,Apollo 11
mwaker,wud ike a
wrd with yu.
ol. 115 no. 6 | $4.99 US
You Promised Me Mars Colonies.Instead, I Got Facebook.
Wee stpped sig big prbems.Meet the techgists wh refuse t gie up. p2
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2
technologyreview.com
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6
From the Editor
We look dierent. Whats changed?
Readers hope that redesigns
should work and atter their eyes.
They worry that things they liked have
been lost, and they dislike additions at
odds with their sense o a publication.
Rest assured. The changes are
meant to enhance your experiences.
Weve taken away nothing except
a small section called From the
Labs, a not-very-useul summary
o recent academic publications. We
added MIT to Technology Review,
because our authority derives in partrom our ownership by the worlds
leading technological institution.
Rather than writing about onts
and graphic design, or about the navi-
gation o dierent sections (which I
hope is sel-evident), let me tell you
what we believe, care about, and hope
to do.
Name a problem. Any will do: pick
one rom the section beginning on
page 26. We believe that or any big,
dicult problem, technology is at leastpart o the solution. At the same time,
new technologies are providing entre-
preneurs and businesses with oppor-
tunities that can grow prosperity and
expand human possibilities.
Were not uncritical boosters o
new technologies, recognizing that
any revolution has losers as well as
winners; but we are disposed to think
technology a powerul orce or good.
Ours is a technological civiliza-
tion. Given the number and urgencyo the worlds problems, it has never
been so important to understand how
technologies can overcome apparently
intractable diculties. It has never
been so important to understand how
technologies can overturn existing
markets and create entirely new ones.
Yet no earthly activity is so badly
served by the journalism that seeks to
explain it. Nothing humans do is so
obscured by hyperbole, jargon, and
inaccurate reporting. Technology mat-
ters, but you cant understand it by
reading most technology sites and
magazines. We want to change that by
applying an authoritative flter to the
overwhelming ood o inormation
about technology.
Were committed to inorming our
readers about important new tech-
nologies by explaining the practical
impact o these advances, describing
how the technologies work and how
they will change our lives. Our maincriterion in choosing what to write
is our judgment as to what will best
serve our audiences. To ulfll our mis-
sion, we make accuracy and indepen-
dence our highest priorities. We do
everything in our power to publish
correct inormation. Our coverage is
independent o any corporate rela-
tionships, including our ownership by
MIT, or any business arrangements,
such as agreements with advertisers.
We mean to publish smart,literate, originally reported journalism
and useul inormation in a variety
o beautiully designed media, both
digital and print; we want to produce
thought-provoking events that make
that journalism live and breathe on
stage; and we hope to provide the
world with a badly needed example
o an innovative, commercially
sustainable, digitally oriented global
media company.
Weve been doing something likethis since 1899, when MIT began
publishing The Technology Review.
But starting today, were going to do
it better, with more impact, and in
new ways. We want to lead the global
conversation about new technologies
because nothing is more important.
Write to me and tell me what you
think o our designs at jason.pontin@
technologyreview.com.
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siemens.com/answers
Siemens answers generate cleaner electrical energy and exports for the U.S.
Energizing our grids andour economy.
Once an international textile center, Charlotte, North Carolina,is rapidly becoming a major energy hub. Here, Siemens builds
large-scale steam and natural gas turbines that help generatecleaner, more efficient electrical energy. Power producers
as far away as Saudi Arabia are ordering Siemens turbinesbuilt in Charlotte.
Were helping here at home, too. Charlottes economy getsa boost. And thanks to our turbines, communities across the
U.S. will enjoy cleaner air and highly efficient, reliable electricity.Somewhere in America, the people of Siemens spend every day
creating answers that will last for years to come.
SiemensAG,2012.AllRightsReserved.
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4
Fr2 Frm he Edr
8 Feedback
ViEws
10 Alzhemer Ahead
An epidemic o age-related
dementia looms
10 Crg Cge
We can now tackle trac as a
network problem
11 Reeag Hry
Weve ully eradicated only one
disease; lets do it again
upFRont
13 Mearg Hae
A survey reveals the countries
where people eel the best
1 Arcal iellgece,
pered by May Hma
Why crowdsourcing is smarter
than Siri
18 ne te Cld Dve aBaby Geme Bere Brh
Blood tests may herald a new
wave o noninvasive screening
20 Drvg a Bel Frard
Joules novel method makes
uel rom light, air, and water
21 A slar sar tha i
Arad slydra Gh
SoloPower moves ahead with
thin-flm solar panels
22 H Yr wrele Carrer
overcharge Y
You may be paying or data you
never receive
2 the CiA ad Jef Bez Be
Qam Cmg
How D-Wave is gaining
momentum
Plus: To Market
Back BusinEss REpoRt
75 iva Fdg
Venture capital is losing its
impact. Can prizes and citizen
crowds take its place?
REViEws
87 old Meda, Dgzed, Make
ne Frm
Computers are changing art in
unexpected ways
By Martin Gayford
92 H Ahr wre
The technologies o
composition inspire innovatio
in literary styles and orms
By Jason Pontin
98 Breakg D
wall sd
Technology is giving live music
a surprising renewal
By David Talbot
DEMo
100ser-Chea Healh te
Making liver tests out o paper
By David Talbot
63 YEARs AGo
10 Chrchll warg
Technologies create problem
even as they solve old onesFEATURES Why We Cant Solve Big Problems by
Jason Pontin p. 26, The Crisis in Higher Education by
Nicholas Carrp. 32, A Billion People in the Darkby
Kevin Bullis p. 42, The Dementia Plague by StephenS. Hallp. 50, Rebooting Manufacturingphotographs
by Max Aguilera-Hellwegp. 60, The Deferred Dreams
of Mars by Brian Bergstein p. 66SidEbARS Another
Way to Think about Learning by Nicholas Negroponte
p. 37,On Living with Dementiaby Floyd Sklootp. 55,
The Imperative to Explore by Buzz Aldrin p. 70
Big SolutionsIssue
Has technology ailed us? Over a billion people still have
no electricity, millions lack clean water, education is in-
accessible to many, the climate is changing rapidly, tra-
fc snarls cities, and dementia and cancer can strike any
o us. In this issue well introduce you to the technologists
who havent given up trying to solve problems like these.
technologyreview.com
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6
on the cover:Buzz Aldrin
photographed by Dan Winters or
MIT Technology Review
Ce
BuzzAldrin,
p.70
100
10
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Other product and company names listed are trademarks or trade names of their respective companies. 08010
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6
MIT TECHNOLOGY REVIEW
Vol. 115 | No. 6 techNologyreView.com
Editor in Chie and Publisher
Jason Pontin
Editorial
Editor
David Rotman
Deputy Editor
Brian Bergstein
Creative Director
Eric Mongeon
Art Director
Nicholas Vokey
Online Editor
Will Knight
Chie Correspondent
David Talbot
Senior Editor, Energy
Kevin Bullis
Senior Editor, MIT News
Alice Dragoon
Senior Editor, Business
Antonio Regalado
Senior Editor, IT
Tom Simonite
Senior Web Producer
Kyanna Sutton
Business Editor
Jessica Leber
IT Editor, Web & Social Media
Rachel Metz
Biomedicine Editor
Susan Young
Copy Chie
Linda Lowenthal
Assistant Managing Editor
Timothy Maher
Research Editor
Mike Orcutt
Design Associate
Jen Hale
Editorial Assistant
J. Juniper Friedman
Production Director
James LaBelle
Contributing Editors
Jon Cohen
Peter Fairley
Simson L. Garfnkel
Courtney Humphries
Martin LaMonica
John Pollock
David Zax
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MIT Technology Review identifes
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explaining how they work, decipher-
ing their impact, and revealing how
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Technology in 1899, we are a digitally
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De Technologia non multum scimus.
Scimus autem, quid nobis placeat.
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technologyreview.com
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6
jOIN THE dIsCussION, OR CONTaCT us
E-mil [email protected]
WriteMIT Technology Review, One Main Street,
13th Floor, Cambridge, MA 02142
Please include your address, telephone number,
and e-mail address. Letters and comments may
be edited for both clarity and length.
WHY CHEap NaTuRaL Gas Is
GOOd, aNd aLsO TERRIbLE
in our last issue, editor David Rotman
(in his review King Natural Gas) exam-
ined how a glut o natural gas is hindering
green energy. Putting a price on carbon
dioxide is oten suggested as a way to boost
green energy, but the review noted that
natural gas is now so cheap it could be
oset only by a carbon price that is too
high to be politically viable. This annoyed
Neil Frazer, a geophysics proessor at theUniversity o Hawaii at Manoa: Im tired
o hearing economists saying that a car-
bon tax isnt politically easible. Their job,
surely, is to tell us what would work, not
whether it is politically easible. Taxes on
alcohol and tobacco were both politically
ineasible beore they were enacted.
One online commenter, intarz ,
lamented the lack o ingenuity when it
comes to clean energy: I would hate to
see a bust in the windarea. I just drove
out west and the number o wind armsin Iowa, Nebraska, Wyoming, Colorado,
and Kansas is staggering. But scattered
wind arms will never be eective as long
as the industry wants to distribute the
power through lines. They should think o
alternative distribution schemes. Trains
loaded with batteries. Can the electrolyte
be charged and pumped in plastic lines
rom the charging source to the decharging
point? I dont have the answers, but I am
surprised the industry seems to consider
it ecient to produce power on the plainsbut ignores the cost to distribute it.
Feedback
Rajat Sen, another online commenter,
elt the new glut o cheap ossil uels was
fne, but we shouldnt dupe ourselves into
thinking it will last orever. Shale oil and
gas are changing our energy economy or
the better. Some say these resources can
last as long as 100 years, while other esti-
mates are much lower. No matter which
side is correct, the resources are limited.
They do give us some breathing room
to develop sensible energy policies and
develop new technologies that are less
harmul to the environment. We should
use that time wisely.
THE INTERNET Is abOuT TO
GET CONfusING
icann, the body that oversees Inter-
net domains, wants to make all sorts o
new domains available: instead o just
.com, .net, and so orth, it wants to con-
sider the likes o .book, .restaurant, and
.carinsurance. Writer Wade Roush took
a critical look at the possibilities (in hisreview ICANNs Boondoggle) and saw
a world o conusion and greed. Many
readers agreed. The apologists o this
new program are happy to use words like
competition and choice, wrote Dylanj
in an online comment. However, youll
notice that most o the rhetoric comes
rom those who stand to directly beneft
rom it. When you see all those involved in
the program, they are seldom people who
seem genuinely there or a good cause.
Instead, you see smart people workinghard to ensure they make a lot o money
while producing almost no real value to
the Internet ecosystem and probably a lot
o unnecessary conusion.
Natcohen was similarly bothered:
For whose beneit is ICANN oversee-
ing the Internet? The main benefciary
o ICANNs decisions seem to be
big surpriseICANN itsel. Is ICANN
responding to a huge public clamor or
more domain extensions? No. They just
decided to create huge new territories on
the Internet and auction o the rights to
that territory, keeping all the money orthemselves.
Not everyone is outraged, however.
The basic premise o this article is all
wrong, wrote Tom Barrett in an online
comment. Who are you or anyone else
to decide i there is a good reason or
the Internet expansion? We should be
encouraging startup activity, not trying
to hold it back.
YOu CaLL THEsE pEOpLEINNOVaTORs?
our september issue eatured our
annual list o 35 Innovators Under the
Age o 35. Gary Calabrese o Corning,
New York, wrote to say that although he
enjoyed the eature, he had a quibble with
our use o the term innovator. Although
all o these olks are certainly very creative
and inventive, many cannot be declared
innovators until their inventions deliver
tangible economic or societal value.The promise o a breakthrough rom an
idea or even a patentable invention does
not make it an innovation until some-
one somewhere actually fnds it valuable
enough to use.
As or our Entrepreneur o the Year,
Ren Ng, creator o a camera whose images
can be reocused even ater the shot has
been taken, one commenter, Mahonj, elt
the innovation in question was a neat trick
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with little practical value: While the tech-
nology is impressive, I think Dr. Ng has
solved a problem that didnt need to be
solved. I have never heard people uming
about photographs ocused on the wrong
object. In act, most real photographers
want to limit the range o ocus by using
ast lenses and large, SLR-sized sensors.
That is what you read about on the camera
websites. The technology may be impres-
sive, but the results arent compelling.
Focusing on the fower or the mountain is
a party trick. It doesnt ulll a real need.
THE RObOTs aRE REadY TO
sERVE YOu NOW
our business report on automation
investigated all the ways that machines
are transorming how we do business.
Eugene Chuvyrov, in an online com-
ment, wondered i our senior business
editor, Antonio Regalado, was overstating
the case in his introductory essay, Auto-
mate or Perish. I program machines ora living, Chuvyrov wrote, and I do not
believe in the singularity, nor do I believe
in the economy being a zero-sum game
(machines win, humans lose). In act,
the promises o AI have largely remained
unullled. Can you really trust Siri, or
reliably use Google Translate or more
than a six-word sentence? I think we have
quite a ways to go beore the Termina-
tor days. I suspect the lack o job growth
in recent years has a lot more to do with
political issues than with automationones.
Another commenter, Qev, wondered
where all this was leading: Throughout
history, the natural response to displace-
ment (in this case due to automation) was
large-scale human migration. But where
on earth (or in space, or that matter) is
there a place where the tasks or operations
still require a large pool o living, breath-
ing, sel-aware humans?
While the world benefi tsfrom whats new, IEEE canfocus you on whats next.
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technologyreview.com
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6
ing my own, hav dvopd brain sans
and othr tsts that an dtt th disas
yars bor dmntia dvops.
W annot aord to wait or nw
tratmnts, with thir ong dvopmnt
tims. W shoud at now on omping
vidn that isty hois suh as dit
and ardiovasuar onditioning an or-
sta dmntia symptoms. For xamp,
two ky Azhimrs prvntion stratgis,
dit and xris, ar known to prvnt
typ 2 diabts, whih doubs th proba-
biity o dvoping Azhimrs dmntia.
I soity is to avoid bing ovr-whmd by th ost o th Azhimrs
pidmi, th disas must bom an
intrnationa hath pri-
ority. Yt w hav not
invstd as muh in ght-
ing it as w hav in om-
ba ting ot hr di s as s .
Rnt indings rom th
U.K. support inrasing
Azhimrs rsarh unding by a ator
o 30 to rah parity with anr rsarh.
Making suh an invstmnt to ath upwi pay of by saving miions o ivs and,
vntuay, triions o doars.
Gary Small is director o the University o
Caliornia, Los Angeles, Longevity Center.
TRAFFIc
Curing CongestionWe can now tackle trafc as a
complex network problem, saysKara Kockelman.
Over half the worlds popula-
tion and 80 prnt o Amrians
iv in urban aras, whr and
or nw transport inrastrutur is ra-
tivy sar. Most roads hav no tos, and
most vhis arry a sing oupant. Not
surprisingy, road ongstion has bom
a daiy xprin or many.
Views
HeAlTH
Alzheimers AheadAn epidemic o age-related dementialooms, says Gary Small.
Ever y 68 se con ds, ano th er
Am r i an is di agno s d wi th
Azhimrs disas. Th oming
wav o odr pop with dmntia wi
pa an unprdntd motiona and
onomi burdn on soity (s Th
Dmntia Pagu, p. 50). Wr iving on-gr thanks in part to advans in mdia
thnoogy, but wr not nssariy iv-
ing bttr.
Approximaty 80 mi-
ion baby boomrs ar
bginning to approah th
yars whn symptoms o
Azhimrs disas mrg.
Th risk or thos 65 and
odr is 10 prnt, and it nars 50 prnt
by ag 85. A rport on th goba onomi
impat o dmntia by Azhimrs DisasIntrnationa stimatd th 2010 osts o
ar at $604 biion.
W ar whoy unprpard or this
risis. Dspit dads o rsarh, w
hav no ur, nor vn any drug that an
rvrs or stav of symptoms mor than
tmporariy. considrab fort has tar-
gtd th paqus o amyoid protin that
orm in th brains o Azhimrs patints,
but non o th atst inia trias hav
sudd. Though w must ontinu to
xpor amyoids ontribution, w asond to rsarh mor widy, baus
thr is mor to Azhimrs disas.
eorts nd to b mad to invstigat
tratmnts that targt othr potntia
mhanisms, suh as abnorma aumu-
ation o brain tau protin and inam-
mation o nurons. Rsours nd to b
ound or work on drugs or vains that
prott a hathy brain bor it boms
damagd. Many rsarh groups, inud-
Gary Small
Kara Kockelman
Larry Brilliant
We are whollyunprepared forthis crisis.Gary Small
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1
technologyreview.com
MIT TECHNOLOGY REVIE
vol. 115 | no
Glbally, ppl avrag abut 60
minuts travl ah day, muh that
nsumd by stps r slwdwns. Sm
dlays ar rgular and rurring, thrs
unxptd. Thy ar all mr than just
a prsnal innvnin: human api-
tal is undrutilizd, right distributin
dlayd, mtings missd, ul wastd,
and nrvs rayd.
Many imprtant radways rgularly
prat nar thir braking pints, and
as ppulatins and nmis ntinu
t xpand, travl dmands will ris and
waits lngthn. Strssd transprtatinsystms bm lss rsilint and rat
asads ral sts. As right is slwd,
d pris ris, r xampl; and as travl
tims xd aptabl thrshlds, r-
tain dstinatins ls thir attratin.
Thanks t nw thnlgis w ar
nw abl t bsrv ths systms and
ngstins ts in ral tim, arss th
larg, mplx sals at whih thy pr-
at. W ar als abl t intrvn at th
sam sal, nt just lally, an apprah
that raiss th prspt making ngs-tin a thing th past.
Transprtatin systm managrs an
nw turn t a mbinatin snsrs, alg-
rithms, and systm simulatrs t prdit
tra dmands rm minut t minut,
day t day, and yar t yar. In a highly
instrumntd systm lik Nw Yrk citys,
signal tims, tlls, and lt-turn prmis-
sins an b n-tund in ral tim.
Truly rduing, rathr than just manag-
ing, ngstin rquirs ativ intrvntin
t hang travlrs bhavir and mak thmst sar radway ral stat. Varying
tlls thrughut th day in rspns t tra-
pattrns, ring slt rsrvatins r
spa in sm lans, and mpnsating
ths wh turn t altrnativs t thir wn
vhil ar n st ptins. GPS-nabld
smartphns and thr thnlgis mak
suh stratgis muh mr ralisti, sin
drivrs an riv and at n inrma-
tin rapidly. Th arrival autnmus,
sl-driving vhils that an saly travl
ls tgthr shuld mak it vn asir
t nhan tra fw (s Sl-Driving
cars, p. 41).
With rad spa limitd,
vr th lng trm travlrs
will nd t shit t smallr
vhils, publi transit, and
nnmtrizd mds
transprt. But by aknwl-
dging th tru sts and
mplxity rad ngstin, w an md-
rat it quit tivly nw.
Kara Kockelman is a proessor o trans-
portation engineering at the University o
Texas, Austin.
INFecTIoUS DISeASeS
Repeating HistoryWe have ully eradicated onlyone disease. Lets do it again,says Larry Brilliant.
In human history, few things
happn nly n. ovr millnnia,
vn statistially rar vnts rpat.
Yt dspit hug rts t rpliat th
at, just n hav w radiatd a human
disas: smallpx, rspnsibl r vr 500
millin daths in th 20th ntury aln.
eradiating smallpx was a thn-
lgial and a human hallng, lik many
ur tughst glbal prblms (s Why
W cant Slv Big Prblms, p. 26).
Thnlgy mad it pssibl t dvlprz-drid vain and th biuratd
ndl. Hundrds thusands humans
had t nd vry as smallpx in th
wrld, villag by villag, hus by hus,
and vainat vry singl prsn xpsd
t th virus. I was n th smallpx tam
in India and Bangladsh in th 1970s,
and w mad vr n billin hus alls.
Tday, wr ls t nally rpating
that ahivmnt: pli nw irulats
in nly thr untris. But nw disas
kp suraing. ovr th last tw dad
arund 30 hav rssd rm animals t
humans, inluding SAR
and hantavirus. Mdrni
has inrasd th risk
glbal pandmi. Grwin
ppulatins and n
mis lad t drstati
and gratr nsumpti
mat, inluding bus
mat, whih inras th liklihd
virus jumping rm animals t human
Air travl givs viruss r transit arans in hurs.
Mdrnity is als th balm r th
ailmnt. Sin 1996, th mdian tim
taks t dtt a disas utbrak ha
alln rm 30 days t 14 days. Digita
disas survillan has gratly imprv
ur ability t nd disass arly nugh t
stp thm rm sprading.
Th rst systms t llt lud dat
n mrging disass usd -mail, lik
PrMd, r surd th Wb r vidn
lik GPHIN. W an nw gathr datdirtly rm ppl xpsd t disas
Ggls Flu Trnds xprimnt prv
that analyzing hw ppl sarh r in
matin abut fu nlin bats cntrs
Disas cntrl rprting by up t tw
wks. At th Skll Glbal Thrats Fun
w ar wrking n an initiativ, Flu N
Yu, that asks ppl t answr qustin
abut symptms via Wb r smartphn
That kind partiipatry survillan
mbil dvis uld hlp trak and takl
disass arund th wrld.W nw hav s muh mr thn
gy than w did whn smallpx was rad
atd. W an slv this prblm withu
making a billin hus alls. All w n
is rativity, mmitmnt, and publi wi
Larry Brilliant is president o the Skoll
Global Threats Fund, a nonproft identi-
ying and addressing large-scale risks to
humanity.
Many roadwaysoperate neartheir breakingpoints.Kara Kockelman
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The Hartford is The Hartford Financial Services Group, Inc. and its subsidiaries, including Hartford Fire Insurance Company. All property and casualty policies are underwritte
by Hartford Fire Insurance Company an d its property and casu alty a liates. The hom e o ce of Hartford Fire Insurance Company is Hartford, CT. 2012 The Hartford Finan
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14
technologyreview.com
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6
crowdouring an reate
an artifial hat partner that
marter than siri-tyle peronal
aitant.
By Tom Simonite
Automated assistants such as
Apples Siri may be useul, but
they dont have nearly the smarts
or conversational skills o a person. Now
researchers have demonstrated a poten-
tially better approach that creates a smart
chat partner out o eeting, crowdsourced
contributions rom many workers.
Crowdsourcing typically involves
posting simple tasks to a website such
as Amazon Mechanical Turk, where Web
users are paid a ew cents each to com-
plete them. The tasks are oten simple,repetitive jobs that are easy or humans
but tough or computers, such as catego-
rizing images. Crowdsourcing has become
a popular way or companies to handle
such tasks, but some researchers believe
it can also be used to take on more com-
plex ones.
When a person opens an instant mes-
saging window using the new crowd-pow-
ered system, which is called Chorus, the
experience is practically indistinguish-
able rom that o chatting with a singlereal person. Yet behind the scenes, each
response emerges rom the work o mul-
tiple people all perorming individual
small tasks, including suggesting possible
replies and voting or the best suggestions
submitted by other workers.
In tests, Chorus was asked or
travel advice and came up with smarter
responses than any one person in the
crowd, because around seven were con-
tributing to its responses at any time.
Services built this way might also becheaper than paying a conventional one-
on-one assistant. It shows how a crowd-
powered system that is relatively simple
can do something that AI has struggled
to do or decades, says Jefrey Bigham, a
member o the team that created Chorus
at the University o Rochester. Bigham
jokes that Chorus is more likely than con-
ventional chat sotware to pass a
Upfront
Artificial Intelligence,
Powered by Many Humans
We should be able to
travel instantly and notjust as a voice or a screen
on the wall.
S hassa, fud f Suab t-
s, a pa a s s a $,000 -
ps b f ffi ks.
QUOTED
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Building the engines of a Smarter Planet:
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f security breaches reported in all industriesacross the globeantivirus measures and firewalls simply cant providesufficient protection against ever-evolving cyber threats. IBM Hosted Vulnerability Management Service (VMS) is not like
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1 Offer valid one per company. Prices are current as of 06/05/12, valid in the U.S. only, and subject to change without notice. Offerings are subject to change, extension or withdrawal without notice. Please contactyour IBM authorized Business Partner or IBM representative for more information. All rights reserved. IBM, the IBM logo, ibm.com, Smarter Planet and the planet icon are trademarks of InternationalBusiness Machines Corp., registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current list of IBM trademarks is available on the Web atwww.ibm.com/legal/copytrade.shtml. International Business Machines Corporation 2012.
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16
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6 technologyreview.com
Turing test, which challenges an articial-
intelligence system to ool someone into
thinking its human, even though Chorus
wouldnt meet most denitions o arti-
cial intelligence.
In trials o the system, people quickly
received suggestions when they asked
or advice on restaurants to visit in Los
Angeles and New York. Feedback such as
Hmm. That seems pricey was quickly
taken on board by the crowd, which came
up with alternatives. AI systems such as
Siri typically have di culty ollowing this
kind o back-and-orth conversation, par-ticularly in colloquial language.
Bigham worked with Rochester col-
leagues Walter Lasecki and Rachel Wesley
as well as Anand Kulkarni, coounder o
the crowdsourcing company MobileWorks.
What were really interested in is when a
crowd as a collective can do better than
even a high-quality individual, he says.
The intelligence o Chorus comes rom
combining dierent peoples work on
many simple tasks into a coherent whole.
First, each piece o a chat entered by ahuman user is passed along to many crowd
workers, who are asked to suggest a reply.
Those suggestions are then voted on by
crowd workers to choose the one to be sent
back. A nal mechanism creates a kind
o working memory to ensure that Cho-
russ replies reect the history o a con-
versation, crucial i it is to carry out long
conversationssomething that is a chal-
lenge or apps like Siri. Crowd members
are asked to maintain a running list o the
eight most important snippets o inorma-
tion discussed, to be used as a reerence
when other workers suggest replies. A
single person may not be around or the
duration o the conversationthey come
and go, and some may contribute more
than others, says Bigham.
Bigham says Chorus has the potential
to be more than just a neat demonstration.
We want to start embedding it into real
systems, he says. Perhaps you could helpsomeone with cognitive impairment by
having a crowd as a personal assistant, he
suggests. Such an assistant would always
be on hand, ready to answer a question.
Another possibility is to combine Cho-
rus with a system previously developed at
Rochester, which has crowd workers col-
laborate to steer a robot. Could you cre-
ate a robot this way that can drive around
and interact intelligently with humans?
asks Bigham.
Michael Bernstein, an assistant proes-sor at Stanord University who is currently
doing research at Facebook, agrees that
Chorus could lead to real-world applica-
tions. You could go rom today, where
I call AT&T and speak with an individ-
ual, to a uture where many people withdiferent skills work together to act as a
single incredibly intelligent tech support,
he says. He believes the Chorus sotware
could become a true expert i it were able
to direct incoming questions to members
o the crowd with particular knowledge
or skills.
However, Bernstein adds that it may
be necessary to add more reviewing steps
to Chorus in order to lter a crowds sug-
gestions, so that it does not develop a split
personality when aced with di cult ques-tions. This is a amiliar problem in apply-
ing crowdsourcing. For example, when the
Rochester researchers built their crowd-
controlled robot, one o the biggest chal-
lenges was preventing it rom crashing
into obstacles dead ahead because hal the
crowd steering it wanted it to go let and
the other hal wanted it to go right.
Upfront
What were really interested
in is when a crowd as a collec-
tive can do better than even a
high-quality individual.
One of my initial
reactions wasAre you kidding?
r Sub, a pu su
sa a Kaspsk, f fid-
a aa k as mad, dsp
b spp dsd, ad fiad baks,
s, ad pas a pa
a fasuu.
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paper, the PlayStation Move
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the same technology in other
new releases. Games with
dinosaur and detective themes,
among others, are now in the
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The MIT Press mitpress.mit.edu
Logistics ClustersDelivering Value
and Driving Growth
Yossi Sheffi
Yossi Sheffi succinctly summarizesthe major current developments
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Engineers forChangeCompeting Visions
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Harrison H. Schmitt, Apollo 17Astronaut, Former U.S. Senator,
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18
technologyreview.com
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6
Upfront
Blood tests may herald
a new wave of noninvasive
prenatal screening.
By Courtney Humphries
Expectant mothers are used to bloodtests to screen or potential health
problems in their unborn babies.
But what i one o those blood tests came
back with a readout o the babys entire
genome?
Recent studies show that its possible
to decode a complete etal genome rom
a sample o the mothers blood. In the
uture, doctors may be able to divine a
wealth o inormation about genetic dis-
eases or other etal characteristics this
way. Such tests will raise ethical questionsabout how to act on the inormation. But
they could also lead to research on how to
treat diseases beore birth, and they could
leave parents and doctors better prepared
to care or babies ater birth.
Its been about 15 years since Dennis
Lo, a chemical pathologist at the Chinese
University o Hong Kong, rst discovered
that ragments o DNA rom a etus could
be ound in a pregnant womans blood.
The work was a breakthrough, since
obtaining etal DNA rom the amnioticuid, rom the placenta, or directly rom
the etuss blood requires an invasive pro-
cedure that raises the risk o miscarriage.
A noninvasive test would make genetic
testing saer and much more widely
accessible.
Since then, several labs have worked
to analyze this etal DNA and exploit it or
noninvasive prenatal tests. The eld has
progressed rapidly in the past couple o
years as genetic sequencing technologies
have become vastly cheaper and aster
while methods o analyzing genetic data
have improved.
One o the rst tests to be developed is
or RhD actor, a type o blood protein; i
the mother is RhD negative and her etus
is RhD positive, the incom-patibility can be dangerous
or even atal or the etus.
Sequenom, a company
that licensed Los research,
began oering a noninva-
sive RhD test in 2010. Sev-
eral companies have also
ofered tests or sex deter-
mination and paternity.
But what has gained
more attention is a recent
wave o tests to detect Downsyndrome, which is caused
by an extra copy o chro-
mosome 21. Women in the
United States are routinely
ofered screening or Down
syndrome, so the market or
such a test is large.
Typically, a pregnant
woman receives an initial
screening or substances in her blood
associated with Down syndrome. Jacob
Canick, a proessor o pathology and lab-oratory medicine at Brown University,
explains that the tests detect 90 percent o
Down syndrome cases but have a alse pos-
itive rate o 2 to 5 percent. Invasive tests
such as amniocentesis are the only way to
make a deinitive diagnosis. Given that
Down syndrome afects only one in 500
pregnancies, the number o women with
a alse positive is much higher than the
number truly carrying an afected etus.
That means that 19 out o 20 women who
undergo an invasive procedure will nd
out that they dont have the genetic abnor-
mality, Canick says.
With those low odds, many women
opt against the invasive procedure. But
new noninvasive tests could make accu-
rate screening much more widespread.
It seems, rom our data and other data,
that these tests are very, very good, says
Canick, who led a trial, unded by Seque-
nom, on one o these tests.
Several startups have begun oer-
ing etal tests or Down syndrome and
other health problems caused by extraor missing chromosomes. But the speed
with which the tests have made their way
into doctors oces has some people con-
cerned. Theres not a minimum standard
o accuracy thats required beore they go
to market, says Mildred Cho, a bioethicist
at Stanord University. She says that the
tests are being adopted even as their accu-
racy is being evaluated in clinical
New Tests Could Divinea Babys Genome Before Birth
3,900
300
megawatt-hours of electric-vehicle battery
capacity expected to be available in 2013
megawatt-hours of demand expected
from electric-car sales in 2013
-
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20
technologyreview.com
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6
Jole unlimited gets a boost for
its novel method of making fel
ot of light, air, and water.
By Kevin Bullis
Joule Unlimited, a startup whose
engineered microrganisms pro-
duce ethanol from sunlight, water,
and carbon dioxide, is taking important
steps forward. It has a new demonstration
plant, and it recently formed a partnership
with Audi to develop and test the fuel.
Most biofuels companies make fuel by
processing some form of biomass, such
as corn, grass, or algae, often with the aid
of microrganisms. Joules approach is
to eliminate as many of the intermediate
steps as possible.
Joule has taken a microrganism (thecompany wont say what) and introduced
combinations of genes so they produce
ethanol from carbon dioxide, water, and
sunlight. To ensure that its metabolism
is geared toward making ethanol rather
than keeping the organism alive, the com-
pany has removed as many of its original
genes as is possible without killing it.
technologyreview.com
At the New Mexico demonstration plant
shown in this rendering, Joule Unlimited
expects to make fuel out of sunlight,
water, and carbon dioxide.
Driving a Biofuel Forward
Upfront
studies. Whereas most prenatal genetic
tests have been developed through aca-
demic laboratories, this technology was
quickly commercialized and disseminated
through companies.
Meanwhile, recent studies suggest
that noninvasive testing could expand in
the coming years beyond simply count-
ing chromosomes to hunting for smaller
genetic aberrations, including mutations
in single genes. A study published in June
by a group at the University of Wash-
ington decoded a fetuss genome using
a blood sample from the mother and asaliva sample from the father. Meanwhile,
Stanford University researchers have
accomplished a similar feat using only a
blood sample from the mother.
That means parents could soon receive
a comprehensive test that could screen
for all kinds of genetic abnormalities and
characteristics. When you open it up to
whole-genome analysis, that brings up the
possibility of testing for traits that are not
diseases, says Cho. It also makes it pos-
sible to test for diseases that are not assimply determined as Down syndrome.
Diana Bianchi, of the Mother Infant
Research Institute at Tufts Medical Cen-
ter, hopes that the ability to uncover dis-
eases in fetuses will spur a new interest in
treating them before birth. Things that
are treatable are really going to change
the landscape, she says.
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manage the pain associated
with these dicult-to-treat
headaches, known as
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A company study ound that
ater one year o use, 65
percent o patients reported
signifcant pain relie. The
device already has approval in
the United States, Europe, and
Japan or treatment o chronic
back and limb pain.
-
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2
technologyreview.com
MIT TECHNOLOGY REVIE
vol. 115 | no
courTesyofsoloPower/BrucemacGreGor
In small-scale tests, Joule has shown
that its approach could produce 8,000
gallons o ethanol per acre per year, a ew
times more than other advanced-biouels
companies have achieved. But now as
Joule moves its technology to market,
the company says it has ound more eco-
nomical methods that have the potential
to produce 25,000 gallons o ethanol per
acre per year. Its also developing organ-
isms that produce diesel.
Crucial to the new approach are the
transparent tubes in which Joule grows
the microrganisms. In the companysoriginal design, the containers resem-
bled solar panelsthey were lat, thin,
and rectangular. Partly to allow air to
move over them or cooling, the panels
were mounted on metal rames on con-
crete pads. We saw very quickly that the
design would not be cost-competitive,
says David Berry, a partner at Flagship
Ventures, which has provided much o
Joules unding.
Joules solution was to do away with
the concrete oundations, metal rames,and solar-panel-like structures and use
plastic tubes instead. The tubes are a cou-
ple o meters wide and up to 50 meters
long. The new design is much larger, and
you can lay it directly on the ground. That
leads to a huge reduction in cost, says
William Sims, Joules CEO.
Joule plans to work out the inal
design or the system at its new our-acre
demonstration plant in Hobbs, New Mex-
ico. One challenge other biouels compa-
nies ace is that the economics o theirprocesses wont be clear until they are
demonstrated in ull-scale commercial
acilities, with large vats or producing
biouel. Sims says Joules approach can
be validated with just a ew o its plastic
solar converters, reducing the amount o
fnancing needed. Its pure replication,
Sims says. What works or our acres will
also work or 5,000 acres.
Braving comparion to the
bankrupt solyndra, soloPower i
moving ahead with the produc-
tion o thin-flm olar panel.
By Jessica Leber
Last years bankruptcy o Solyndra,
a maker o thin-ilm solar panels
that received a $535 million loan
guarantee rom the U.S. Department o
Energy, is casting a huge shadow over
solar startups. But it hasnt stopped
SoloPower, another Silicon Valleybased
manuacturer o solar panels with a very
similar technology. SoloPower recently
began production in a manuacturing
acility in Portland, Oregon.
Like its ailed predecessor, SoloPowerhas been awarded a ederal loan guaran-
tee ($197 million, which was approved
during the same month that Solyndra
announced bankruptcy), though it hasnt
begun tapping into the money. Whats
more, SoloPower is targeting the same
niche market as Solyndra: rootops o
industrial or commercial buildings.
The comparisons go only so ar. Solyn
dras bankruptcy had more to do with it
own business ailures than with aws i
its technology. The company spent ar to
much money ar too ast and produced a
more product than it had customers or
Even so, SoloPower is entering pro
duction during a horrible time or sola
panel manuacturers, especially oproducers o thin-ilm technology. Th
technology is meant to be cheaper tha
conventional silicon-based solar cells, bu
the plunge in silicons price has large
negated its advantage.
To avoid Solyndras ate, SoloPower
going ater the hal o all commercial an
industrial building owners who cant us
more conventional solar power becaus
their rootops cant support the weight o
todays modules, says CEO Tim Harris. Th
company is betting its lightweight produwill command a higher price than pane
sold as commodities. It will begin by sellin
in countries, such as Japan and Italy, th
have strong demand or rootop solar, rela
tively high peak electricity prices, and som
government incentives. Says Harris, W
have more demand than we have capacit
or the next couple o quarters.
SoloPowers chie
technology ocer,
Mustaa Pinarbasi,
shows o the
companys fexible
solar technology.
A Solar Startup That Isnt Afraidof Solyndras Ghost
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22
technologyreview.com
MIT TECHNOLOGY REVIEW
vol. 115 | no. 6
Bad coverage and streaming
video can confuse carriers into
making you pay for data you
never receive.
By Tom Simonite
When your wireless carrier
charges you or the amount
o data you used on your cell
phone in a given month, how do you know
the bill is accurate? It very well may not
be, according to a new study.
This question has become important
now that the largest U.S. mobile carriers
have replaced unlimited data plans with
ones that cap data usage and charge extra
or exceeding those limits.
Working with three colleagues at theUniversity o Caliornia, Los Angeles,
computer science PhD researcher Chunyi
Peng probed the systems o two large U.S.
cell-phone networks. She wont identiy
them but says that together they account
or 50 percent o U.S. mobile subscribers.
The researchers used a data-logging app
on Android phones to check the data use
the carriers were recording. They were
ound to count data correctly most o
the time, but they tended to overcount
and hence potentially overchargewhena person used applications that stream
video or audio, and particularly when cov-
erage was weak or unreliable.
The researchers determined that even
typical use o a phone could lead the data
to be overcounted by 5 to 7 percent.
The problem occurs because carriers
count of data as it leaves the heart o their
networks and heads to the mobile tower
nearest a subscriber. That means data
is tallied whether a subscribers phone
receives it or not. I a person on a bus is
streaming video but enters a tunnel and
loses the connection, the unseen video will
be counted toward that customers plan.
The problem afects video and audio
streaming apps in particular because they
use protocols that dont require the receiv-
ing device to acknowledge the receipt o
every chunk o data, as Web browsers and
many other apps do. That means a video
app will keep sending data or some time,oblivious to the act that a device cant
receive it.
Using a custom app made to dem-
onstrate the aw, the UCLA researchers
racked up a charge or 450 megabytes o
data they never received. We wanted to
explore how bad it could be and stopped
ater that, says Peng. Theres apparently
no limit.
It should be simple, says Peng, or
mobile network operators to change this
by adding sotware to make the phonesgive some eedback to the central data
loggers. But she notes that carriers might
say their current accounting is air, since
they incur the costs o transmitting data
whether it reaches a device or not. From
the perspective o a mobile user, I think
its not air, she says, because I didnt
get to use it.
Upfront
How Your Wireless CarrierOvercharges You
Apples share o the
worldwide proft gen-
erated by smartphone
sales, according to
Asymco, a research frm.
Apples share o the
worldwide smartphone
market, according to
IDC. Android phones
have a 68 percent share.
17%
66%
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The marcus evans event continues to offerIT executives insight into the application of
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Chief Information Officer SummitDecember 3-4, 2012Ritz-Carlton, Buckhead | Atlanta, GA
www.investmentseries.com
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MIT TECHNOLOGY REVIEW
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UpfrontUpfront
wth fundng from the amzon
founder nd the cias nvestment
rm, the cndn ompny
D-wve s gnng momentum for
ts ne pproh to omputng.
By Tom Simonite
Inside a blocky building in a Vancouver
suburb, across the street rom a dowdy
McDonalds, is a place chilled colder
than anywhere else in the known universe.
Inside that is a computer processor that
Amazon ounder Je Bezos and the CIAs
investment arm, In-Q-Tel, believe can
tap the quirks o quantum mechanics to
unleash more computing power than any
conventional computer chip. Bezos and
In-Q-Tel are in a group o investors who
just bet $30 million on this prospect.
I the bet works out, some o the
worlds thorniest computing problems,
such as the hunt or new drugs or eorts
to build artiicial intelligence, could
become less challenging. This develop-
ment would also clear the tainted reputa-
tion o D-Wave Systems, the startup that
has been pursuing a quantum computer
or eight years.
D-Waves supercooled processor is
designed to master what sotware engi-neers call optimization problems
iguring out the most eicient delivery
route, or example, or determining how
the atoms in a protein will move around
when it meets a drug compound. Vir-
tually everything has to do with optimi-
zation, and its the bedrock o machine
learning, which underlies virtually all
the wealth creation on the Internet, says
Geordie Rose, D-Waves ounder and chie
technology ofcer.
Rose, a conident Canadian with aguitar and samurai sword propped in
the corner o his windowless ofce, has
been making grand claims since 2007,
when he unveiled D-Waves rst proo-
o-concept processor at the Computer
History Museum in Mountain View, Cal-
iornia. Attendees saw a D-Wave proces-
sor (apparently) solve sudoku puzzles
and ind a close match or a particular
drug molecule in a collection o other
compounds. But skepticism and accusa-
tions o raud rained down on the com-pany rom academic experts on quantum
computing. Roses predictions about how
quickly the company would increase the
capabilities o its chips ailed to come to
ruition, and the company kept quiet.
Recently, however, the company has
shown signs that it is inally ready to
answer its critics. In May 2011, it pub-
lished a paper in Nature that critical aca-
The CIA and Jef BezosBet on Quantum Computing
An elaborate structure cools and
shields the D-Wave processor so
that it can (apparently) conduct
quantum calculations.
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courTesyofknome
demics said proved or the rst time that
D-Waves chips have some o the quan-
tum properties needed to back up Roses
claims. Articial-intelligence researchers
at Google log into a D-Wave computer
over the Internet to try it out, and 2011
also saw the company sign its rst cus-
tomer. Deense contractor Lockheed Mar-
tin paid $10 million or a computer or
research into automatically detecting sot-
ware bugs in complex projects such as the
delayed F-35 ghter. Questions remain
about just how its technology works, but
D-Wave says more evidence is orthcom-ing. It is readying an improved processor
that Rose says is the companys rst true
product rather than a piece o research
equipment.
In D-Waves headquarters is a bright
white lab space dominated by our black
monolithsD-Waves computers. Around
10 eet tall, they emit a rhythmic, high-
pitched sound as supercooled gases cir-
culate inside. Each o the machines has
a door on the side and is mostly empty,
with what looks like a ray gun descendingrom the ceilinga widely spaced stack o
ve metal discs held together with cables,
struts, and pipes plated with gold and cop-
per. It is actually a cold gun: the structure
is a chilly 269 C (4 K) at the wide end
and a ew thousandths o a degree above
absolute zero at its tip, where D-Waves
ngertip-sized chip can be ound.
The processor in every computer
youve used is made rom silicon and pat-
terned with transistors that create logic
gatesswitches that are either on (repre-
sented by a1 in the computers program-
ming) or o (a0). D-Waves processors
are also made up o elements that switch
between 1 and 0, but these are loops oniobium alloy that become supercon-
ductors at very low temperatures. These
loopsthere are 512 o them in the newest
processorare known as qubits and can
trap electrical current, which circles inside
the loops either clockwise (signied by a
0) or counterclockwise (1). Smaller super-
conducting loops called couplers link the
qubits so they can interact and even inu-
ence one another to ip between 1 and 0.
This delicate setup is designed so
that the layout o qubits conorms to analgorithm that solves a particular kind
o optimization problem at the core o
many tasks difcult to solve on a conven-
tional processor. Perorming a calcula-
tion on D-Waves chip requires providing
the numbers to be ed into its hard-coded
algorithm. Ater a wait o less than a sec-
ond, the qubits settle into new values that
represent a lower state o energy or th
processor, revealing a potential solutio
to the original problem.
What happens during that crucial wa
is a kind o quantum-mechanical argu
ment. The qubits enter a quantum stat
where they are simultaneously 1 and 0
like Schrdingers cat being both dead an
alive, and lock into a strange synchronici
known as entanglement. That allows th
system o qubits to explore every possib
nal conguration in an instant beor
settling into the one that is simplest, o
one very close to it.At least, thats what D-Waves scien
tists say. But Scott Aaronson, an MI
proessor who studies quantum compu
tation, says D-Waves system could plaus
bly be solving problems without quantu
eects, in which case it would simply be
very weird conventional computer. Aaron
son says the company still needs to prov
that its qubits really can become entan
gled and that the chip delivers a signi
cant quantum speed-up compared wit
a classical computer working on the samproblem. In the past there was an eno
mous gap between the marketing claim
and where the science was and thats com
down, but theres still a gap, says Aaron
son, who visited D-Waves labs this year
Rose counters that he is more ocuse
on increasing his customers computin
power than on placating academic critic
Whether the chip exploitsquantum effects remains
unclear. Even so, Google
and Lockheed use it.
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Why WeCantSolve Big
ProblemsBy Jason Pontin
On July 21, 1969, Buzz Aldrin climbed gingerly out o
Eagle,Apollo 11s lunar module, and joined Neil Armstrong
on the Sea o Tranquility. Looking up, he said, Beautiul,
beautiul, magnicent desolation. They were alone; but
their presence on the moons silent, gray surace was the
culmination o a convulsive collective eort.
Eight years beore, President John F. Kennedy had
asked the United States Congress to commit itsel to
achieving the goal, beore this decade is out, o landing a
man on the moon and returning him saely to the Earth.
His challenge disturbed the National Aeronautics and
Space Administrations original plan or a stepped, multi-
generational strategy: Wernher von Braun, NASAs chie
o rocketry, had thought the agency would rst send men
into Earths orbit, then build a space station, then fy to the
moon, then build a lunar colony. A century hence, perhaps,
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NAsA
Buzz Aldrin on the moon, July 21,
1969. Refected in his visor, the
photographer: Neil Armstrong.
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humans would travel to Mars. Kennedys goal was also absurdly
ambitious. A ew weeks beore his speech, NASA had strapped an
astronaut into a tiny capsule atop a converted military rocket and
shot him into space on a ballistic trajectory, as i he were a cir-
cus clown; but no American had orbited the planet. The agency
didnt really know i what the president asked could be done in
the time he allowed, but it accepted the call.
This required the greatest peacetime mobilization in the
nations history. Although NASA was and remains a civilian
agency, the Apollo program was possible only because it was a
lavishly unded, semi-militarized project: all the astronauts (with
one exception) had been Air Force pilots and naval aviators;
many o the agencys middle-aged administrators had served in
the Second World War in some capacity; and the director o theprogram itsel, Samuel Philips, was an Air Force general ocer,
drated into service because o his eective management o the
Minuteman missile program. In all, NASA spent $24 billion, or
about $180 billion in todays dollars, on Apollo; at its peak in
the mid-1960s, the agency enjoyed more than 4 percent o the
ederal budget. The program employed around 400,000 people
and demanded the collaboration o about 20,000 companies,
universities, and government agencies.
I Apollo commanded a signicant portion o the treasure o
the worlds richest nation and the coperation o all its estates,
that was because Kennedys challenge required NASA to solve
a bewildering number o smaller problems decades ahead otechnologys evolutionary schedule. The agencys solutions were
oten inelegant. To escape rom orbit, NASA constructed 13
giant, single-use multistage rockets, capable o liting 50 tons
o payload and generating 7.6 million pounds o thrust. Only
an ungainly modular spacecrat could be own by the deadline;
but docking the command and lunar modules midight, send-
ing the lunar module to the moons surace, and then reuniting
the modules in lunar orbit demanded a kind o spastic space
dance and orced the agencys engineers to develop and test a
long series o astronautical innovations. Men died, including
the crew oApollo 1, who burned in the cabin o their command
module. But beore the program ended in 1972, 24 men ew tothe moon. Twelve walked on its surace, o whom Aldrin, ollow-
ing the death o Armstrong last August, is now the most senior.
Why did they go? They brought back little841 pounds o
old rocks, Aldrins smuggled aesthetic bliss, and something most
o the 24 emphasized: a new sense o the smallness and ragility
o our home. (Jim Lovell, not untypically, remembered, Every-
thing that I ever knewmy lie, my loved ones, the Navyevery-
thing, the whole world, was behind my thumb.) The cynical,
mostly correct answer is that Kennedy wanted to demonstrate
the superiority o American rocketry over Soviet engineering: the
presidents challenge was made in May o 1961, little more than
a month ater Yuri Gagarin became the rst human in space.
But it does not adequately explain why the United States made
the great eort it did, nor does it convey how the lunar landings
were understood at the time.
Kennedys words, spoken at Rice University in 1962, provide
a better clue:
But why, some say, the moon? Why choose this as our goal? . . .
Why climb the highest mountain? Why, 35 years ago, y the
Atlantic? . . . We choose to go to the moon in this decade and
do the other things, not because they are easy, but because they
are hard; because that goal will serve to organize and measure
the best o our energies and skills . . .
Apollo was not seen only as a victory or one o two antago-
nistic ideologies. Rather, the strongest emotion at the time o
the moon landings was o wonder at the transcendent power
o technology. From his perch in Lausanne, Switzerland, the
writer Vladimir Nabokov cabled the New York Times, Tread-
ing the soil o the moon, palpating its pebbles, tasting the panic
and splendor o the event, eeling in the pit o ones stomach the
separation rom terrathese orm the most romantic sensation
an explorer has ever known.
To contemporaries, the Apollo program occurred in the con-
text o a long series o technological triumphs. The rst hal o the
century produced the assembly line and the airplane, penicillinand a vaccine or tuberculosis; in the middle years o the century,
polio was on its way to being eradicated; and by 1979 smallpox
would be eliminated. More, the progress seemed to possess what
Alvin Tofer dubbed an accelerative thrust in Future Shock,
published in 1970. The adjectival swagger is pardonable: or
decades, technology had been increasing the maximum speed o
human travel. During most o history, we could go no aster than
a horse or a boat with a sail; by the First World War, automobiles
and trains could propel us at more than 100 miles an hour. Every
decade thereater, cars and planes sped humans aster. By 1961, a
rocket-powered X-15 had been piloted to more than 4,000 miles
per hour; in 1969, the crew oApollo 10 ew at 25,000. Wasntit the very time to explore the galaxyto blow this great blue,
white, green planet or to be blown rom it, as Saul Bellow wrote
inMr. Sammlers Planet(also 1970)?
SinceApollo 17s ight in 1972, no humans have been back to
the moon, or gone anywhere beyond low Earth orbit. No one has
traveled aster than the crew oApollo 10. (Since the last ight
o the supersonic Concorde in 2003, civilian travel has become
slower.) Blithe optimism about technologys powers has evapo-
rated, too, as big problems that people had imagined technology
would solve, such as hunger, poverty, malaria, climate change,
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cancer, and the diseases o old age, have come to seem intrac-
tably hard.
I remember sitting in the living room in Berkeley, Caliornia,
watching the lito oApollo 17. I was ve; my mother admon-
ished me not to stare at the ery exhaust o the Saturn 5 rocket.
I vaguely knew that this was the last o the moon missionsbut
I was absolutely certain that there would be Mars colonies in my
lietime. What happened?
Parochial Explanations
That somethinghappened to humanitys capacity to solve bigproblems is a commonplace. Recently, however, the complaint
has developed a new stridency among Silicon Valleys investors
and entrepreneurs, although it is usually expressed a little dier-
ently: people say there is a paucity o real innovations. Instead,
they worry, technologists have diverted us and enriched them-
selves with trivial toys.
The motto o Founders Fund, a venture capital rm started
by Peter Thiel, a coounder o PayPal, is We wanted ying cars
instead we got 140 characters. Founders Fund matters, because
it is the investment arm o what is known locally as the PayPal
Maa, currently the dominant action in Silicon Valley, which
remains the most important area on the planet or technologicalinnovation. (Other members include Elon Musk, the ounder o
SpaceX and Tesla Motors; Reid Homan, executive chairman o
LinkedIn; and Keith Rabois, chie operating ofcer o the mobile
payments company Square.) Thiel is caustic: last year he told the
New Yorkerthat he didnt consider the iPhone a technological
breakthrough. Compare [it] with the Apollo program, he said.
The Internet is a net plusbut not a big one. Twitter gives 500
people job security or the next decade, but what value does it
create or the entire economy? And so on. Max Levchin, another
coounder o PayPal, says, I eel like we should be aiming higher.
The ounders o a number o startups I encounter have no re
intent o getting anywhere huge Theres an awul lot o eo
being expended that is just never going to result in meaningu
disruptive innovation.
But Silicon Valleys explanation owhy there are no disruptiv
innovations is parochial and reductive: the marketsin particu
lar, the incentives that venture capital provides entrepreneurs
are to blame. According to Founders Funds maniesto, Wha
Happened to the Future?, written by Bruce Gibney, a partner
the rm: In the late 1990s, venture portolios began to reec
a dierent sort o uture Venture investing shited away rom
unding transormational companies and toward companie
that solved incremental problems or even ake problems V
has ceased to be the under o the uture, and instead becomeunder o eatures, widgets, irrelevances. Computers and com
munications technologies advanced because they were well an
properly unded, Gibney argues. But what seemed uturistic a
the time oApollo 11 remains uturistic, in part because thes
technologies never received the sustained unding lavished o
the electronics industries.
The argument, o course, is wildly hypocritical. PayPals capo
made their ortunes in public stock oerings and acquisition
o companies that did more or less trivial things. Levchins la
startup, Slide, was a Founders Fund investment: it was acquire
by Google in 2010 or about $200 million and shuttered earlie
this year. It developed Facebook widgets such as SuperPoke anFunWall.
But the real difculty with Silicon Valleys explanation
that it is insufcient to the case. The argument that ventur
capitalists lost their appetite or risky but potentially impo
tant technologies claries whats wrong with venture capit
and tells us why hal o all unds have provided at or nega
tive returns or the last decade. It also useully explains how
collapse in nerve reduced the scope o the companies that go
unded: with the exception o Google (which wants to organiz
the worlds inormation and make it universally accessible an
useul), the ambitions o startups ounded in the last 15 year
do seem derisory compared with those o companies like InteApple, and Microsot, ounded rom the 1960s to the late 1970
(Bill Gates, Microsots ounder, promised to put a computer i
every home and on every desktop, and Apples Steve Jobs sai
he wanted to make the best computers in the world.) But th
Valleys explanation conates all o technology with the tech
nologies that venture capitalists like: traditionally, as Gibne
concedes, digital technologies. Even during the years when VC
were most risk-happy, they preerred investments that require
little capital and oered an exit within eight to 10 years. Th
venture capital business has always struggled to invest pro
Perhaps the most famous photo-
graph from the Apollo lunar land-
ings: Buzz Aldrins footprint in the
moons gray, powdery surface.
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ably in technologies, such as biotechnology and energy, whose
capital requirements are large and whose development is uncer-
tain and lengthy; and VCs have neverunded the development
o technologies that are meant to solve big problems and possess
no obvious, immediate economic value. The account is a partial
explanation that orces us to ask: putting aside the personal-
computer revolution, i we once did big things but do so no
longer, then what changed?
Silicon Valleys explanation has this ault, too: it doesnt
tell us what should be done to encourage technologists to solve
big problems, beyond asking venture capitalists to make better
investments. (Founders Fund promises to run the experiment
and invest in smart people solving dicult problems, oten di-
cult scientic or engineering problems.) Levchin, Thiel, andGarry Kasparov, the ormer world chess champion, had planned
a book, to be titled The Blueprint, that would explain where the
worlds innovation has gone. Originally intended to be released
in March o this year, it has been indenitely postponed, accord-
ing to Levchin, because the authors could not agree on a set o
prescriptions.
Lets stipulate that venture-backed entrepreneurialism is
essential to the development and commercialization o tech-
nological innovations. But it is not sucient by itsel to solve
big problems, nor could its relative sickliness by itsel undo our
capacity or collective action through technology.
Irreducible Complexities
The answer is that these things are complex, and that there is no
one simple explanation.
Sometimes we choose not to solve big technological prob-
lems. We could travel to Mars i we wished. NASA has the out-
l