I would go, I wouldnt care about not being able to come back...the hard part for me is deciding between the past or the future...Ive always been fascinated by ancient civilizations, but I also want to see future advancements in science and technology and where humans will be in thousands of years...also I would quite like to experience the late 70s/80s (I was born in 1984) just to see what it was like....