Originally Posted by Tornreaper
The way I see it if Doc's age changed he would fade INTO a new looking a Doc instead of fading OUT.
The reason why Doc faded was because he never time traveled. But why Marty didn't fade is beyond me. Even if someone else made the time machine using Doc's FC ideas he should still fade because Marty's reason for time travel is mostly with the help of Doc. If Doc didn't get stuck in 1931 then Marty would have no reason to go there.
But I still think the theory about his age is absurd.
I'm inclined to think that Doc fading out faster than Marty in the Citizen Brown timeline is just a plothole, which doesn't bother me very much because its not part of the main trilogy. I still like to take things from the game into account, such as Emmett's backstory and Kid Tannen because they seemed like they were intended to expand the BTTF-verse. I am just more forgiving with mistakes in the writing and the general silliness when it comes to the game.
As far as this age theory goes, I don't really buy it either. It seems awfully contrived to me. I suppose it's better than any explanation I've heard though, if you really want to resolve the discrepancy.
With this kind of stuff, it makes it easier for me to think if I use simple examples. Let's say Joe from the year 2000 spends 15 years building a time machine, and finishes it in 2015. He goes to 1985, and gets stranded when the time machine breaks. He then waits until the year 2000, when the parts he needs become available, but winds up taking the only parts that his 2000 self can use to build it in the first place. When he goes back to 2015, no time machine should exist. Does that mean he would instantly lose his memories and be some failed scientist? (Even weirder, does this mean that the time machine itself would still exist because its fadeout process was slower?)
This is the logistic equivalent of Citizen Brown timeline if the age theory was true. And it just begs the question...why would the age be such an important factor when the time machine itself doesn't even fade away? I thought the whole point was that time machine should be gone, as long as its still there there's no reason why Doc should have faded away faster.