What is Life?

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   A physicist guessed, long before DNA was discovered, that life must carry a kind of "code" passing instructions from parents to children.

   What is Life? · 1944

   Schrödinger predicted that life operates by a hereditary molecular code, before DNA was discovered.

   Schrödinger wondered how something as tiny as a cell could pass complex instructions across generations without frequent mistakes. He proposed the idea of an aperiodic crystal — a kind of message written into the structure of molecules. A few years later, scientists found exactly this message: DNA.

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