I get that that is the rational explanation. But I swear this one day I woke up after having a short but very specific dream, I was in class talking to my friends sitting in a very specific position and one of my mates said something. Later that day that situation happened and I almost said what he said in unison.

Years later one of those guys also told me about it, so its not like I made that memory up. But it just doesn't make sense??

That's probably true for most stuff but I've heard weird stuff. I knew someone that said they had one of those moments where they were able to guess who was going to walk through the door next. Or they chose a college based on a dream and then remembered when they ended up in the situation with the dream at that college.

The brain accessed ROM when it should've accessed RAM.