Replying to this because I want to highlight that experience in 1 is not experience in another. A friend of mine is very well versed in lsd. I have seen them take what we estimate to be doses of .8 to 1.25mg. (Naturally we can't be certain because it's not well regulated) But whatever the number these were VERY high doses well beyond what people usually take. They're familiar with the substance and can remain "calm" on these herculean doses. They assumed the experience would translate to psilocybin because they are similar. He was very wrong. At 7 grams they had a few hours where they were absolutely convinced they were dying to the point of considering 911. From how they describe it they honestly should have called. To this day they still exhibit PTSD from the event.