I remember with 100 percent clarity doing great in sophomore high school math. I loved it and I went on to get a PhD. Then my mom passed and I got a box of stuff with my name on it from her house. It included my report card. C.
Sorry that came off like a reddit comment. The first part was just me joking. I don't actually believe in the simulation hypothesis although it is fun to think about.
The second part was just me agreeing with their comment that it's crazy how bad our own memory is and how it's difficult to come to grips with. Like when my mom, sister, and I are all arguing over a past event and remember it very differently. The true events are (to my knowledge) absolute, but in a philosophical sense, we're all living in our own reality as our memories are telling us the events unfolded differently even though they didn't.
yep possibly "oh shit I'm gonna fail, I better study like crazy" gets 100 on the final and brings a D up to C, and realizes he can do math pretty well when he tries.