5 Mind‑Bending Mysteries Science Still Can’t Crack

The Minimum of Consciousness

Doctors can measure brain activity, but they can’t pinpoint the exact moment a human being goes from “unconscious” to “aware.” Is a newborn baby truly conscious? A dog? A worm? An AI? There is no scientific threshold, no switch to flip. The “hard problem” of consciousness remains one of the last true frontiers of neuroscience.