wanna go to the moon in 3 days? how about mars in 90?
This engineer has spec'd out everything that we will need in order to build a functioning star ship enterprise (minus light speed capabilities) within the next 20 years. He even estimates the cost will be no more than 1 trillion dollars over that 20 years.
Check it out, some of the tech stuff is interesting and its a pretty good read.
inb4 nerd.