Back to the Future: Does physics of Marty's time travel add up?

Today is 21 October 2015 – the date Marty McFly and Doc Brown travel to in Back to the Future Part II. Can we reconcile the films with reality?

Quantum time travel doesn't follow Back to the Future rules

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Where are we with time travel?

Time Travel Is Possible but Changing the Past Isn't, Study Says

How you can REALLY go back to the future: Experts reveals just what it takes to build a time machine

If Back to the Future isn't an accurate time travel movie, then what is? - Quora

Avengers: Endgame and time travel: Why it all makes perfect sense - CNET

DeLorean time machine - Wikipedia

Back to the Future Part III (Film) - TV Tropes

The Making of 'Back to the Future' (TV Short 1985) - IMDb

The Tech of 'Back to the Future' -- Behind the Camera (Q&A) - Vox

Watch Now: Back to the Future Cast Performs “Only a Matter of Time”

LEGO Icons Back to the Future Time Machine 10300, Model Car Building Kit, Based on the DeLorean from the Classic Movie

Back to the Future Part 2': Designing a future for 30 years ago

Stream Expedition: Back to the Future