"Screen psychedelic practitioners by asking about adverse events Ferriss offers a field-tested vetting question for anyone evaluating a guide or clinician in somatic or psychedelic healing contexts: ask them to describe the most concerning adverse events they have witnessed and how they handle acute crises. If the practitioner claims there are no adverse events or that people never have difficult reactions, 'they're either lying, delusional, or very inexperienced — and those are not mutually exclusive.' A seasoned, honest practitioner will have clear protocols for difficult experiences; an absence of such stories is itself a red flag. He adds a time-based filter: prefer practitioners who were working in the field well before the mainstream cultural wave that began around 2018. Source: Tim Ferriss, The Tim Ferriss Show, AI Q&A Solo Episode"