You gooback!

Harrison Moore [at the time portal. News vans, reporters and scientists, one in a space suit, gather around and marvel at the portal]:
Aaron, I'm standing at the time border which scientists say follow Terminator rules. That is, it's one way only and you can't go back. This is in contrast, say, to Back To The Future rules, where back and forth is possible, and of course, Timerider rules, which are just plain silly. Anyway, it appears that the man from the future is here to stay.