Just for fun at the end of 2013, here is a look back at 1964, when one of my all-time favorite sci-fi writers Isaac Asimov speculated what the world would be like in 2014. He got some things right -- like solar power stations and online education -- and some wrong -- like moon colonies and moving sidewalks in cities.
Notably, he very nearly guessed the U.S. population -- 350 million -- and the Earth's population -- 6.5 billion instead of the actual 7.1 billion!
By Isaac Asimov
August 16, 1964 | New York Times