Are mass hallucinations a real thing?

A short skeptical-inquiry post questioning whether 'mass hysteria' can explain multiple people witnessing the same paranormal event. Scott draws a useful distinction: documented mass hysteria involves shared false beliefs or delusions (people believing they have a disease), not shared vivid hallucinations; reported sightings tend to be a few people scattered across a large society (Spring-Heeled Jack) rather than hundreds seeing the same thing simultaneously, so the 'hysteria' may just be selection from millions for the few already a bit unstable or attention-seeking. Conformity can make people misinterpret borderline stimuli (find Jesus in a pattern of dots once primed), but it's a much bigger leap to claim conviction alone can conjure a vivid shared hallucination in otherwise-sane people. Ends asking for evidence that it can.

Quality 63 · Strong. Solid. A genuinely useful skeptical clarification (mass hysteria explains shared false belief, not shared vivid hallucination; the few-across-society vs simultaneous-crowd distinction), delivered crisply — but short and ending in a request for evidence, so mid-Solid.

Claude’s paradigm shift 35 · Slight. Moderate-slight — the delusion-vs-hallucination distinction is a useful sharpening of a commonly over-invoked explanation.

Real-world impact 2 · Minor. A crisp skeptical clarification (mass hysteria explains shared false belief, not shared vivid hallucination); a useful idea within the discourse, no material reach → RWI 2.