Well going by this logic BTTF III was a prequel then because they went to the 1800s.

Speaking of prequels someone explain to me how Kyle Reese was like a 20 year old guy in Terminator Salvation and taking out like ten T-800s then is like a 40 year old man in the original Terminator which is supposed set only ten years into the future when he goes back into time. And also why did they only send back one T-800 when obviously the technology was there to send back a more efficient killing machine. I wish they didn't mess with The Terminator series after T2 it doesn't make any sense.

Michael Biehn was 30 when he played Kyle Reese in the first Terminator, so it sounds like it fits with the timeline you set up perfectly.

Really maybe in the 80s people just looked older. I have friends in their 30s that look like their in their 20s and a lot of celebs I can't believe they're 30s. Either way the last two Terminator movies are crap.