Twenty years for me. Ten years in the future seems too close to the present. I want to see amazing changes. But do I really want to see how I look in twenty years? Plus, twenty years gives you more data to game the system when you get back whether its financial, political, finding out exactly how bad climate change will or will not be, and that amazing new vibrator they're going to design in twenty years. Please tell me I can take the vibrator back to the present?
If you could walk into the "set" of any film made in the last fifty years and have that world come alive for you (with you becoming for all practical purposes any non-starring character in movie, but still having your memories and sense of identity), which would it be and why? Crazy enough question?