Wish I am born later. After we discover the art of immortality.
Same here except I'd go even further and say I would like to have been born in a post-singularity world with immortality, mind uploads, and a post-scarcity economy.
Would have been awesome if I had bought/mined a couple of bitcoins back in 2009 and used them to pay for a cryonics contract. That way, if I die, I'd wake up "reborn" as a cyborg or some sort of post-singularitarian consciousness in a virtual world. I could be a bird and experience flying or be a rocket and explore outer space.
Then if time travel is ever invented, I would be able to travel back in time to any era I wanted too.