Another Gaster theory

[Talx]

Yuuup, another one of those. But hey, I checked the clues, and I think I got a solid theory.. Sorta.
So, I'll go with the usuall assumptions- Gaster is a skeleton, and is related to Sans and Papyurs(we can see it by the Gaster Blaster and all 3 being skeletons). We also know by the 3 followers that he lived during Asgore's time, since one of them states it was hard for him to find a new scientist. We also know he fell into one of his own creations, which leades me to the scars on his face. Couldn't he have gotten them from the fall, before scattering through space and time?

Not only that, but we also see in Sans' workshop a drawing of 3 people. We can safely assume one is Gaster, since Toby never just adds things.
Speaking of Sans.. What are his main connections with Gaster? Apart from everything I've already mentioned, we can also see he hates humans. REALLY hates them. He states so during the dialouge when he mentions the lady on the other side of the door, and it's pretty clear he dislikes humans. Where am I going with this? Well, perhaps Gaster's experiment didn't go wrong. Maybe he didn't fall, but perhaps.. Got pushed?
Another popular theory is that Gaster is Sans and Papyrus' father or older brother. This doesn't quite matter, apart from Sans' importance. We see he clearly knows more than his brother about what's going on with the timelines, meaning he might actually be the older brother out of the two. His deeper voice supports it, too. But, nevertheless, he's the more responsible one.

So, all the facts are layed on the table. What can we make out of them? Well, here's my theory:
Gaster and his two assistants/sons/brothers were studying the space-time continum. During his research, the first human, Chara, fell into the mountain. We know Chara has a killer instinct, towards both humans and monsters. So, one day, while wondering through the underground, they got into Gaster's lab. There was Gaster, researching (perhaps it was the large machine found in Alphys' true lab, since the fall under this one seems to be the longest one). Chara then couldn't resist, and pushed Gaster down his own creation. One thing he didn't know was that Sans saw the incident, and developed a hate for humans. Perhaps Sans kept researching and got his awesome superpowers (or Gaster gave them to him before the fall), or he destroyed the machine and hid it in his basement.

Well, that's it! If you guys see any missed details or just have anything to add to this theory, make sure to leave a comment. It'd be appreciated, thanks!

[(Edgy) Asriel Dreemurr]

Beware the man who came from the other world. . .

[(Edgy) Asriel Dreemurr]

I have my own theory regarding the skeleton trio. . . it's a bit more out there than this, but it is supported to some extent.

[Talx]

I'd like to read as many theories as I can. Possibly to find one I find more convincing

[(Edgy) Asriel Dreemurr]

Well my theory is that Sans, Papyrus, and W.D. all share the surname Gaster, but they aren't brothers per se.

W.D. was experimenting with Determination and how it could be used to travel between parallel universes. Supposedly his hope was to find a universe where the monsters continued to live on the surface, so they could simply take everyone there.

While conducting his experiments he met Sans and Papyrus, who are actually not brothers, but different versions of W.D. Gaster from different universes he visited. They eventually discovered the "anamoly" (Frisk/Chara destroying W.D.'s universe at the end of the genocide route). There also seems to be another character named Suzy (possibly a human) that ties into these experiments as well, but we don't know enough about her yet to know how.

Anyway, the experiment W.D. Gaster fell into was this device that allowed transdimensional travel. It's also the machine hidden in Sans's workshop. Gaster was scattered across space and time when the machine was broken and he was inside it. Sans and Papyrus were simultaneously trapped in W.D.'s universe when this happened.

Papyrus and Sans created the idea that they were brothers in order to hide the existence of parallel universes from people that would abuse that knowledge, and also to keep the monsters from becoming hysteric due to the anamoly that would eventually destroy their universe.

The evidence for this is obviously Sans's Workshop. It's also hinted multiple times through Sans's dialogue that he isn't from this game's universe. "Beware the man who came from the other world" probably refers to Sans and is a warning of the "bad time".