Wormholes have long served as science fiction’s favorite shortcut through the cosmos, but a growing body of theoretical physics research suggests they will never function as tunnels. That does not ...

Quantum mechanics replaced the clockwork certainty of classical physics with something far stranger: a framework in which ...

(via Sabine Hossenfelder) To us normal people, cause and effect are linked together in a distinct order. The cause occurs first, and the effect follows after. But according to a new paper, that causal ...

Causal Set Theory (CST) offers a compelling approach to reconciling quantum theory and general relativity by postulating that spacetime, at its most fundamental level, is discrete rather than ...

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As an ordinary reader trying to make sense of the universe before breakfast, I was delighted by your feature on quantum causality. The idea of “causal bubbles” gave me a way to picture the quantum ...