That sounds a bit hyperbolic to me. There's not a whole lot I would wanna exchange my experiences for.

Basically we're talking about traveling back in time but forgetting all your memories after that point. And without those memories you'd just end up at exactly the same spot where you now are, wouldn't you? Assuming the universe is deterministic. Which paradoxically means you actually cherish those lived experiences so much that you wanna relive them. ;)

No way. In my 50s and I don't perceive any loss yet so maybe that's why. Sure, sometimes it takes a few seconds to bring up some random fact. I need to wait for the 'recall relay' to finish in my brain, which must be chemically based because if electrical it would only take a second to remember. Somewhere there's a neuron that 'knows' that answer, probably hundreds of them. Somehow I know that I know it, but I don't know the specifics yet until it presents itself. But to trade an instant recall for lived experience, knowledge, and know-how? Never. Better to know how than what. Better to know why than how. Better to know the map than the road name, every time.

I'm still 35, so probably don't count, but I would never trade "me" today for "me at age 20"