-Oh, Einie. I’m sorry, boy.
The lab is an awful, awful, awful, awful mess.
Attaboy.
Obviously, the time continuum has been disrupted, creating this new temporal event sequence resulting in this alternate reality.
-English, Doc.
-Here, here, here. Let me illustrate. Imagine that this line represents time. Here’s the present, 1985, the future and the past. Prior to this point in time, somewhere in the past, the timeline skewed into this tangent creating an alternate 1985. Alternate to you, me and Einstein, but reality for everyone else.
-We’ll arrive shortly thereafter, get her out of there and go back to 1985.
-You mean I’m gonna see where I live? I’m gonna see myself as an old man?
No, no, no, Marty. That could result in…
The encounter could create a time paradox, the results of which could cause a chain reaction that would unravel the very fabric of the space-time continuum and destroy the entire universe!
Granted, that’s a worst-case scenario. The destruction might, in fact, be very localized, limited to merely our own galaxy.