[pmoriarty]

"you can drive on LSD if you’re experienced with psychedelics and know you can trust yourself, at least under doses <150ug. ... Absolutely not recommending it to anyone, but the visuals don’t really get in the way."

It's not just the visuals that are the problem. Temporal distortions are common -- you can feel like time has stopped or slowed down or sped up or gone backwards. Also, you might get disoriented or confused -- not understanding where you are or what you're doing or how a steering wheel works while you're on the freeway is probably not the wisest or safest thing to subject yourself or others on the road to. Or you might get irresistibly entranced by a fleck of paint on your dashboard, which could look like a whole animated world to you, while you should be keeping your eyes on the road, etc, etc, etc.

You know how there's a warning not to drive or operate heavy machinery on some medications? Well, that warning should be on psychedelics, only times 1000.