The Rest Is Science

Cognitive Ghosts

137 snips
Mar 17, 2026
They unpack déjà vu, presque vu and jamais-vu and how familiarity can trick memory. They explore blindsight, multiple self illusions and lab tricks that create sensed presences. They probe the high-place phenomenon and the strange urge to harm when overwhelmed. They explain cute aggression, hypnic jerks, deathbed visions and cultural tales that shape what we accept as real.
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ANECDOTE

The Call Of The Void Is A Confabulated Urge

  • Michael Stevens described the high place phenomenon where fear spawns a phantom urge to jump as a confabulated explanation.
  • The brain invents an internal compulsion to rationalize intense fear at edges.
INSIGHT

Cute Aggression Is A Homeostatic Counterbalance

  • Cute aggression is likely a homeostatic response: overactivation of caregiving circuits triggers aggressive impulses to rebalance.
  • Researchers coded responses showing people say both protective and aggressive phrases when overwhelmed by cuteness.
INSIGHT

Hypnic Jerks Could Be An Evolutionary Relic

  • Hypnic jerks may be vestigial: loss of muscle tone in sleep triggers a corrective startle, possibly from arboreal ancestors.
  • Frederick Coolidge suggests jerks prevented falling from trees as muscle tone relaxed.
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