Board Thread:General Discussion/@comment-28984341-20160721002025/@comment-38730647-20190604230121

Here's what i'm thinking... You are right on all three of those theories, here's how the events would go down.

. Wing Dings aka W.D Gaster was trying to retrieve more determination from a soul or investigating past the underground when the inner core started melting down, thus lead to Gaster being the sole monster in the lethal vicinity of the blast. Everyone from the Lab evacuated except him, and Sans went back to help(I believe that Sans is his son, but Sans was created in an experiment so his "son") but Gaster blocked him off so he wasn't in the lethal blast zone.

. I think it was less "fell in" and more a giant explosion because if all that happened was he fell in, i'm pretty sure more than two monsters would remember him. And during the explosion Sans would have been knocked back to where the particles involved in the explosion kind of affected him in a way where he remembers Gaster, aware of other timelines, and can remember parts of the RESETS.

. And the final million dollar question of Did He Fall In?

I think no because I think, during the explosion his body was atomized and as what has been proven, scattered across time and space.

Now don't batter me with "That's not right" and "You're so wrong" etc.

I am just giving my opinion, i'm not stating it as a fact.