Generally speaking, AI is nowhere near as accurate and reliable as people think, but it is a good way to perform glorified Google searches, and it can sometimes break down things you know you know, but can't quite explain.

I use Gemini and Grok, and I used to use Perplexity. And this time I asked Gemini.

I asked it a simple question: "do you think the human brain trains itself to replay and store some memories a little bit more vividly than others because it knows they're unique and might come in handy in bad times?"

After the usual niceties (AI seems to be trained to appease and compliment users), it explained that some psychologists and neuroscientists call this 'emotional saliency' or 'adaptive memory'.

It explained that the brain doesn't 'know' the future, but it is 'biologically programmed to prioritize certain memories based on their intensity and potential utility.'

According to information gathered by Gemini, when we experience some unique or intense, the brain's emotional centre kicks into 'high gear' and 'stamps the memory with a priority tag'.

Gemini's result also explained that the brain regularly performs neural replay, and it added that the human brain is essentially a 'highly curated library' that stores 'rare editions' (this is literally what it wrote).

It also pointed out that the human brain is trained to evolve to survive. That's why we remember pain and bad experience.

So as not to repeat it again, which makes sense.