Self-sufficient matter transmutators,
aging's end, space travel with previous two.
If I get to see these, I'll make myself a rocket, (hack and) download the library of congress (and others like it) for myself, and **** right off to outer space... build hotrods, warbirds and all sorts of contraptions somewhere with gravity close enough to Earth's, etc. If after a few hundred years it gets too boring, I'll fly into the sun or a blackhole.