BTTF 3 How *did* Doc Brown get back?

They’re all one and the same.

I see what you’re saying. Before Doc disappears in the thunderstorm to 1885, there is not a DeLorean in the mine. But immediately after, when Marty gets the letter, there now is one in the mine, but there aren’t any other DeLoreans in 1955 at that moment.

However, that now means, retroactively, the one in the mine now always was there, and anyone living through that newly merged 1955 would be sharing Hill Valley with four DeLoreans.

time travel is awesome!

You’ve got to think fourth dimensionally!!

Fine. Give me Pepsi Free then.

Yeah, I’ve got a real problem with that.

If I could go back in time, I’d have stuck in a DeLorean driving past in the background somewhere in the third or fourth movie, just to screw with people like us down the road.

The short answer is that HE IS DOC BROWN!*

I wonder Doc Brown ever met The Doctor?

Any way if Spock could construct a mnemonic circuit using stone knives and bearskins, Doc Brown could whip up a flux capacitor in 1885.

*the long answer is He’s Doc Brown, bitches!