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Experiments Spell Doom for Decades-Old Explanation of Quantum Weirdness
Physical-collapse theories have long offered a natural solution to the central mystery of the quantum world. But a series of increasingly precise experiments are making them untenable.
Where Quantum Probability Comes From
There are many different ways to think about probability. Quantum mechanics embodies them all.
Why the Many-Worlds Interpretation Has Many Problems
The idea that the universe splits into multiple realities with every measurement has become an increasingly popular proposed solution to the mysteries of quantum mechanics. But this “many-worlds interpretation” is incoherent, Philip Ball argues in this adapted excerpt from his new book Beyond Weird.
Entanglement Made Simple
How quantum entanglement connects with the “many worlds” of quantum theory.