We live in a universe of causes. How can something come into existence without something causing its existence?
Quantum virtual particles are constantly popping into and out of existence all around us, and they can't be associated with a specific cause.
Nobody really knows what causes the collapse of a quantum state of superposition, though some claim it is the act of observation itself that causes the collapse.
No one can explain what causes mass to deform spacetime.
Our intuition was trained by Newton, Galileo, even Aristotle to believe we must associate a cause with an effect. But in some real sense, that intuition was overturned by 20th century physics.
Cause and effect might not be a fundamental property of the universe. It might be a secondary or emergent property of time, space, and mechanical law.
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