What Will Change Everything?

John Brockman poses the question:

What game-changing scientific ideas and developments do you expect to live to see?

Check out the answers, by some of the most interesting thinkers on the planet. Many of them may seem in the realm of science fiction—but had this question been asked in 1985, the internet and all the things we do in it would also have seemed unbelievable. Can we defeat mortality, as a couple of the respondents now discuss? Seems unlikely to me, especially at the rate I’m putting on weight, but who knows?