JK Rowling has doubts about Ron and HermioneHarry Potter author J.K. Rowling is having second thoughts about Ron and Hermione. She ended the series with heroine Hermione Granger paired up romantically with Ron Weasley.

The hugely successful author tells Wonderland magazine she chose the red-haired Ron for Hermione for very personal reasons. The reasons had little to do with literature.

She told the magazine she "wrote the Hermione/Ron relationship as a form of wish fulfillment." She said the couple might eventually need relationship counseling.

Emma Watson, who played Hermione, also expressed doubts about the viability of her character's relationship with Ron.

She said that many fans doubt Ron can make Hermione happy over time.

Many fans had hoped Harry and Hermione would become a couple.

Critical thinking challenge: What might have been JK Rowlings very personal reasons for linking Ron with Hermione?

Facebook is used more often than the BibleFacebook's numbers are epic. More Americans check Facebook daily than read the Bible and it has more monthly users worldwide than most continents have people.

Facebook, which celebrates its 10th anniversary Tuesday, says worldwide it has 757 million daily active users. Of those 19 percent are in the U.S. and Canada, so that's more than 143 million people checking Facebook daily.

The Bible used to be the go-to for statistics about reading, pre-digital age. A 2006 CBS News poll found 15 percent of U.S. adults read the Bible or other religious texts daily. There are about 267 million adults in the U.S. and Canada. That means about 40 million people reading the Bible daily.

And then there are monthly users Facebook claims 1.23 billion of them. That's more people than live in any country but China. In fact, Facebook is beyond comparing to nations and is more continental in magnitude. Facebook's monthly user population is larger than six of the seven continents, only behind Asia.

Facebook's monthly user total is about the population of all of North America and Europe combined.

But all those numbers pale behind this one factoid from Facebook: About 400 billion photos have been shared on Facebook.

That's lots of selfies.

If you printed them out four to a page on regular-sized sheets of paper and put the 100 billion sheets end to end, they would stretch for about 17 million miles. That's enough snapshots to reach to the moon and back 34 times.

Critical thinking challenge: Why are there more monthly Facebook users than daily Facebook users?