Any profound experience (and many a mundane one) causes permanent change. We call that "memory". But people who are borderline schizophrenic should never do LS

Any profound experience (and many a mundane one) causes permanent change. We call that "memory". But people who are borderline schizophrenic should never do LSD. They may tip into full-on psychosis. They should, however, take MDMA, and experience quiet, maybe for the first time.