[whycombinatore]

History repeats itself because: 1. People reproduce and die. The lessons learnt cannot be transmitted to the future generation in an error free way. Also, any such "lesson learnt" can be questioned. For example, how can be sure that event "A" really happened? Books, images, videos, all can be unreliable. If you cannot for sure say that an event happened in the past, then how can you learn anything from it?

2. I think this is more important than (1). We humans don't want to learn certain lessons due to inherent biases. We may live with these inconvenient "lessons" for short term gains, but given a chance, we want to forget these lessons and start over.

Because of 1 and 2, over generations, history repeats.

For what its worth, I don't think we're in a simulation as such, but in an uncontrolled experiment. Stuff happens here which is ultimately meaningless, but we assign it meaning in the short term.