In case you're interested in seeing what people said in the past, and the predictions made then, here are some of the HN items about them:
http://searchyc.com/submissions/anybot?sort=by_date
http://news.ycombinator.com/item?id=538848 <- 2 comments
http://news.ycombinator.com/item?id=552929 <- 10 comments
http://news.ycombinator.com/item?id=575394 <- 2 comments
http://news.ycombinator.com/item?id=629143 <- 2 comments
http://news.ycombinator.com/item?id=745831 <- 14 comments
http://news.ycombinator.com/item?id=1076157 <- 10 comments
http://news.ycombinator.com/item?id=1357787
http://news.ycombinator.com/item?id=1357896 <- 40 comments
http://news.ycombinator.com/item?id=1388509
http://news.ycombinator.com/item?id=1499582 <- 45 comments
http://news.ycombinator.com/item?id=1506155 <- 3 comments
http://news.ycombinator.com/item?id=1554166
http://news.ycombinator.com/item?id=1554420