Will see in our lifetime?

Space elevator   6% 1879 / 6%
Mars base   7% 2053 / 7%
Music without RIAA   16% 4753 / 16%
Linux topples Microsoft   20% 5770 / 20%
Secure e-voting   11% 3298 / 11%
Flying cars   3% 1114 / 3%
Life extension > 50 years   7% 2181 / 7%
U.S. invades Canada   24% 7015 / 24%
28063 total votes.