On the other thread I mentioned Roger Bacon, who anticipated existence of airplanes more than 700 years ago. This reminded me of a conclusion I came to some time ago and I thought I might share. In my opinion people througout the ages had little difficulty predicting actual technological advances. However, the psychological and social effects of applying said advances in everyday life, almost universally escaped them. A perfect example: last year I read a 1960s futurology book by some Romanian scientist (can't recall the name unfortunately). While the guy was able to more or less correctly predict existence and properties of the internet (among other things), he thought that global computer network, giving instant access to the sum knowledge and culture of mankind will somehow elevate its users... He fantasized we will all learn higher math and listen to classical music (and, of course, communism will universally prevail ). Not a word about torrents, porn, forum trolling or "this weird part of youtube again"... So, the bottom line is: we can predict fusion drives, nanotechnology, organic computers and whatnot, but that still does not give us a slightest hint about how will the future look like. Any thoughts on the matter? Pros? Cons?