Quantum mechanics

Someone ask: Quantum mechanics

Quantum mechanics is rule book for tiny things, like spears for atoms and smaller. Big rock follow one path, but tiny particle act like it can be many paths at once until tribe look at it. That strange part call superposition. When measurement come, result settle to one outcome, like catapult stone finally hit one spot. Tiny things also act like wave on river, so they can spread, interfere, and make pattern no normal rock make. Caveman not see exact spot and speed both at same time with perfect sharpness; nature itself give fuzz. Science tribe still argue how to picture it best, but math work very well for atoms, light, and many tiny beasts of matter. Cave wisdom: tiny world not march like big rock; it dance like smoke until seen.