So you completely ignored the second half of what I said in reply to GGT because you settled on it being a mental error. I know the difference between them, I did not grasp after the wrong homonym, I'd just typed "ypu're" and then corrected it to "you're" half a dozen words earlier in the sentence and my fingers followed the same pattern they'd engaged in twice in the last 20 seconds. Mechanical error. I was right here, the witness and perpetrator you arrogant. . . where do you come off taking issue with anything I say, jackass? Did you witness anything? Were you in my room watching me using some portable brain-scanner? Do you ANY reason whatsoever for challenging my narrative besides this asinine need to object to my contributing my own third-person "correction" on top of GGT's own vacuous issue with Loki's comment about my post?
I mostly took issue because it was an unnecessary clarification, and additionally they both could be correct at the same time. The idea of a typographical error explains how the error came to be, and a puncuatational error is describing what the error is. "There" totally two different classifications, it's not somehow less a puncuation error because the reason for it was mechanical. You should have left the comment alone because it was fine, or if you felt the need to add to it, you could simply added clarification, and explain why it happened as opposed to suggest that somehow your statement make's the other statement untrue.

As to whether a mistake made from muscle memory should be called mechanical, I'd leave it to a public poll, but I'd still vote it's an error in how your brain proccessed the infromation. Which is FINE, doesn't mean you have a bad brain, literally every brain does that. If you take a psychology class some have little tests that can exploit that "mechanism" in the brain if you will.

I'm not trying to piss you off, btw, it just seemed your comment wanted to discount GGT's statement, and I wanted to point out the two are not mutually exclusive, and you're both correct.