There is a philosophy that says that if something is unobservable -- unobservable in principle -- it is not part of science. If there is no way to falsify or confirm a hypothesis, it belongs to the realm of metaphysical speculation, together with astrology and spiritualism. By that standard, most of the universe has no scientific reality -- it's just a figment of our imaginations.

Leonard Susskind

Mots clés science universe physics

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There is so much to groak; So little to groak from.

Leonard Susskind

Mots clés philosophy

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