Ask HN: Its the year 1996
If you tried to build the next facebook, would you be able to do it with the technology of the day? There is no asp.net, php doesn't come out until next year, and java is crude. Even if you did build it, the time just might be wrong. The world may not be willing to accept twitter yet.
Lets say you know enough about tech from the day, and you've found an idea who's time it is. Are you physically capable of executing? I am 23 so in 1996 I was still in elementary school. Domains cost $70, and as a kid, thats a lot.