I want to live in the future because in the future there will be robots. And I'll probably rule the world.
Ditto.

The past doesnt sound quite fun, you could die because of lack of immunization. Your life expectancy isnt as high as it is today, and what is out technologically today wouldnt be there. So I would rather live in the present, but it would be nice to live in the future. An life expectancy in the future would be in the 500s. Itd be cool to live at 500 years old and like be on space ships or whatever and fight in huge gears! Like xenosaga~