Sorry to hear that you are dealing with dementia.
I don't have dementia, as I'm 38, but I notice that because I type so fast or seem to be in a rush, I often have tons of typos. It can be embarrassing. I go back over my post
and I'm reading it, and I'm like, who wrote, this
. I see words there that I did not tell my brain to type. I've caught myself doing it before. I'll start typing (just did it now)
and I'm thinking a word, but my fingers type something different. The sentence previously I was trying to type the word "typing" but I put the word "thinking" and had to go
back and erase it. I think I'm thinking faster than I type and expect my fingers to keep up. I need to slow down when I type and proof read better, myself.