Please, you're on a discussion site where the main demographic is actively microdosing to improve their productivity at startups inbetween two editions of Burning Man. You'd be hardpressed to find someone without a first-hand experience of acid.

But yeah, you pretty much tend to remember everything that happens to you during a trip, even years afterwards, which naively makes me believe your brain and memories become more malleable during that timeframe. This would explain why bad trips could be traumatizing.

Then there's gwern who did a RCT self-experiment and reported no benefits but the way he measured said 'benefits' (stupid little tests, self-rating) isn't convincing.