Question: Since the probability of having three children is greater than the probability of having two children, shouldn't Marty (as the youngest) disappear from the photograph first rather than last?
Join the mailing list
Separate from membership, this is to get updates about mistakes in recent releases. Addresses are not passed on to any third party, and are used solely for direct communication from this site. You can unsubscribe at any time.
Check out the mistake & trivia books, on Kindle and in paperback.
Chosen answer: Probability has nothing to do with it. The changes in the timeline are rippling out from the initial point of disruption. As Marty's brother and sister were born before him, their respective births are closer to the point where the alteration happened. As such, they're erased from the timeline first, so they fade out before he does.
Tailkinker ★