
▲ 656 r/spaceshuttle
20 years ago today: Discovery takes flight on STS-121, the first and only manned spacecraft launch on the Fourth of July
u/ToeSniffer245 — 1 day ago

Did Marty and Doc have to go back to November 12th, 1955 to destroy the almanac?
Sure, that’s when old Biff gave his younger self the book, but young Biff didn’t do anything with it until betting on the horse race in 1958, which is when the timeline truly changed. There’s at least a three-year gap between those, meaning Marty and Doc could’ve gone to any date during that period to find and destroy the almanac. Marty wouldn’t have to dodge his past self at the dance and Doc wouldn’t get struck by lightning, meaning the third movie wouldn’t happen.
What do you think?