Invent flawless Virtual Reality technology and live out my dreams. Possibly do something like that Elon Musk and create a space exploration company and try to push the boundaries on where the human race is. I'd love to see colonies of humans living on space ships or space stations. Fund research into making new antibiotics so that we won't hit a crisis when most disease become resistant to the ones we have at the moment. Buy myself a small island and live in peace and quiet away from other people.