I actually thought it was from ediface, but his account was corroborated by trulycoined.
Oh man, that's funny. The flux capacitor actually was from me because that's what went through my head while I was reading it because essentially he's making the claim that at 12 he observed one of great discoveries of science just as Galileo did (not incorrectly like Aristotle did) and he did it all on his own. I actually left off an important part of the quote because right before he starts the story he says:
"Before I had ever ready(sic) Einstein,.."
So I can understand why you thought it was from him. But the end quote for the article in my original post is right before the flux capacitor part.
https://www.armstrongeconomics.com/future-forecasts/cycles-einstein-galileo-geometry-of-time/"I was probably about 12 years old and I fell out of a tree and over a cliff falling probably a couple of hundred feet. I was lucky and it was Fall so at the base of the cliff was a mountain of leaves. The leaves broke my fall but my teeth nearly came through my bottom lip. The wind was knocked out of me and my nose was bleeding."
<---- end of article quote here...and when i came to I had a revelation! A vision! A picture in my head! A picture of this! This is what makes time travel possible: the flux capacitor!