That's pretty interesting. It makes sense you'd only be able to go back in time until the first machine was built.
I'd rather not let this happen because before you know it there will be robots appearing in order to destroy the human race
"I AM A PERVERTED HUMAN DEVIANT. WATCH ME AS I SAY OUTRAGEOUS THINGS! PEDOPHILE BREASTMILK BESTIALITY BUKAKKI BUKAKKI BUKAKKI BUKAKKI BUKAKKI..."I'm looking at ourchair on this one. His sexual deviations seem a little too forced to be legit. Must be trying to blend in.
I have no idea how this thread slipped past me, but I was doing a search to look for a time topic I brought up, and found this instead.
Time travel is impossible, mainly because, there is nowhere to go. I concur with Moonmaster on this one.
Time is merely a preception we have, nothing more.