Board Thread:General Discussion/@comment-26006155-20190425222457/@comment-26006155-20190502231656

If Gaster was a monster, he's have six human souls and one monster soul... still not enough to break the Barrier.

If Gaster was a human.. he wouldn't have been able to absorb the other human souls anyway, because humans can't absorb other human souls any more than monsters can absorb monster souls. Which is why both Gaster and Alphys needed a 3rd party vessel to hold the soul power, instead of holding it themselves.

Granted, ghosts don't seem to count as either humans or monsters, so Gaster could have absorbed the other human souls.. but only after his death. And this assumes that the fraction of a soul each of his shattered pieces have still counts as a full human soul.

One reason ghostly Gaster would want to eat monster souls to restore his power. And also fear someone with a full human soul, like Frisk.

From what I can see, Sans *IS* Alpha Frisk.

That's how Sans was able to interupt and change his own story by traveling to the past, to give his earlier self a chance at a better ending.

There was only one Sans in the Alpha timeline, but two in the Beta timeline.

Whether you call Sans "Alpha Frisk" or Frisk "Beta Sans", the result is the same.

As to why Beta Gaster died in 201X? That's still a mystery.

Perhaps Sans flat out killed him.

Or perhaps Sans tried to reason with him, only to find that as before, Giygas-corrupted-Gaster wasn't someone he could reason with. And in the ensuing battle, Gaster got tossed into a portal and shattered again.

The evidence points to Beta Gaster dying in 201X according to the royal memorial fountain, but we still don't know why it happened.