the.com/unpredictability
The universe's reserved right to ignore your forecast and your feelings.
means The quality of being impossible to know in advance, no matter how much you plan or guess.
from From Latin praedicere, to foretell, plus the prefix un- slamming the door on certainty; we literally named it after our failure to see it coming.
Coin flipFair flips actually favor the starting side slightly.
Chaos theoryTiny inputs spawn wildly different outcomes, weather included.
Quantum coreParticles are genuinely random, not just secretly hiding answers.