I'd visit the near future, close enough that someone might want to talk to Larry Niven and can figure out the language; distant enough to get me decent medical techniques and a ticket to the Moon.
But... watching Steven Barnes taught me to treat my life like an art form.
Never tell a computer to forget it.
Never be embarrassed or ashamed by anything you choose to write.
I've spent a lot of my life among people brighter than myself.
Ethics change with technology.