Bell inequality entangled particles local hidden variables

Entangled particles can break a limit on local explanations

Bell’s inequality sets a limit on what theories based only on local hidden causes can predict. Quantum mechanics predicts that entangled particles can break that limit. Any hidden-variable explanation that matches those predictions therefore cannot also remain local.

Some viruses can make their hosts more resistant to bacterial infections

Viruses are usually discussed as causes of disease, but some persistent viral infections can alter a host's immune response in useful ways. Experiments in mice have shown that certain latent herpesvirus infections can temporarily improve resistance to particular bacterial pathogens. The effect depends on the virus, host and circumstances; it does not mean viral infections are generally beneficial.

“Atheist” did not always mean denying God

In early modern religious disputes, the label could describe someone who believed in God but denied that God guided events, or held views judged incompatible with accepted Christian teaching. The word alone does not show whether a person denied God's existence.

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Bell inequality entangled particles local hidden variables

Entangled particles can break a limit on local explanations

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