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?
124 Solo: How Time Travel Could and Should Work – Sean Carroll
Back To The Future's Time Travel Explained: How It Works & Is It Accurate?
Marty McFly Time-Traveled to This Week. Did 'Back to the Future' Get It Right?
3 Theories of Time Travel : r/coolguides
The Physics of Back to the Future, by Ethan Siegel, Starts With A Bang!
Back to the Future: Does physics of Marty's time travel add up?
Time travel is possible, but it's a one-way ticket – ScienceBorealis.ca Blog
Time travel, Futurepedia
Back to Back to the Future
Back to the Future DeLorean back in the spotlight in star-studded documentary - Hagerty Media, back to the future
time travel - Can Marty McFly ever truly return home? - Science Fiction & Fantasy Stack Exchange