I graduated HS in 1968, there was about a six month period of party party party and job searching usually hung over, finally.......fuck this hello US Navy.
During that six months some buddies as bad off as myself came across some tabs of Purple Wafer one of the many brands of the acid going around back then.
It was split a tab, so we did.
The deal was be damn sure you can hang out that night, nobody being allowed to leave. And we took turns being the straight one who took care of us weirdos.
My experience
Key word...........distortion............I never lost what was real but it just wasn;t the same, yep..distorted. Distances were fucked as was time and smell. Things weren;t normal but I knew that, actually it was like watching that above video, more a spectator than a participant, if that makes any sense.
Then there was ........the trail You saw movement in frames instead of smooth transition..
And even today all these years later I will.......see things in frames. Other than that nothing else I am aware of.
I do remember everything felt rubbery, metal was rubber, glass-rubber, paper-rubber etc.
Keep in mind, just half a tab.
Guessing I took 4/5 trips in those six months, always the same.
Yep, if young and dumb, hey, If intelligent and mature, hell no it's stupid.