Retrocausality is the speculative idea that a later event might help explain or constrain an earlier one, especially in some interpretations of quantum mechanics.
Schrödinger’s Cat shows the tension between quantum superposition and everyday reality: the math allows multiple possible states, but measurement gives us one observed outcome.
Quantum mechanics is where nature outgrows common sense. It is our best-tested description of the tiny world, but its deeper meaning remains open. The math works beautifully, even when our everyday categories fail.
Entanglement proves connection. It does not prove what that connection means. Quantum entanglement shows that particles can share linked states across distance.
Done. Refresh for another set.
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