Although for me when I feel like I have dreamed the situation before, it usually occurs during the entire situation. It is weird when you feel like you know exactly what is going to happen, i.e., you know what you are going to say before you think about saying it, or you know what another person is saying as they say it. It is almost in a sense like precognition, but I don't believe in that kind of stuff at all, so I suspect it is a metaphoric glitch in my metaphoric computer of a brain. Where I just feel like I know what is going to happen, not that I actually do.

That is kinda weird!
Do your dreams ever feature you remembering a certain fact, and when you wake up you can't remember if it's a true thing that made it into the dream or if it's just something your brain made up? That happens to me a lot.

"Plato is The Matrix and Descartes is Inception. Just was reminded by your point one.

If I have seen any Matrix glitches, it was probably the time I went to a pet store for guinea pig food and saw a baby cavvy that looked identical to one of mine. I took a picture for comparison (which I have sadly since deleted :( ) and their fur patterns/colors matched perfectly. Bit of a weird moment for me, but I dismissed it as pet stores getting their stock from the same breeders.