Board Thread:Wiki Discussion/@comment-31960778-20170721040405/@comment-34367615-20180116221835

Personally, I think it's possible--even probable--that Sans, Alphys and Gaster are connected. However, I don't think that Sans wrote any of the entries in the True Lab. The main reason most people (or at least MatPat in his Gaster theory) think that is because it's written with no capital letters and very little punctuation, similar to the way we see Sans talk and write throughout the rest of the game. However, if you look at what these entries actually say, to me, it doesn't sound like something Sans would say at all. Two examples:

"ASGORE left me five messages today. four about everyone being angry, one about this cute teacup he found that looks like me. thanks asgore."

"i spend all my time at the garbage dump now. it's my element."

Not only do these seem very out of character for Sans, but they seem to fit Alphys's character perfectly. We know for certain that she spends a lot of time at the dump; she says so herself. Also, we see as we're traveling through Hotland that Alphys uses similar grammar to what's seen in the entries when posting status updates on UnderNet. (I guess this isn't 100 percent valid, though, because the note she leaves for us before we enter the True Lab is written with proper grammar and punctuation. Still, it's something to be considered.)