Alan Turing — "The problems of biology can be reduced to physics and chemistry."
The problems of biology can be reduced to physics and chemistry.
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More from Alan Turing
"The game of cricket is one such example of a game which can be played against the computer."
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Details
Attributed, reductionist view, hard to pin down exact wording/source.
Date: Approx. 1950s
ShockingVerification
Unverifiable
Found in 1 providers: grok
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Understanding this quote
What it means
Living systems, no matter how complex, ultimately obey the same laws that govern non-living matter. There is no mysterious life force separate from science. Growth, reproduction, and biological form can all be explained by molecular interactions, reaction-diffusion dynamics, and physical processes. Understand the underlying chemistry and physics precisely enough, and you have a complete account of life — no special biological principles required beyond what already governs atoms and molecules.
Relevance to Alan Turing
Turing spent his final years working on morphogenesis, publishing his landmark 1952 paper 'The Chemical Basis of Morphogenesis,' which modeled how reaction-diffusion chemical processes generate biological patterns like stripes and spots. He believed nature runs on computable, physical rules — the same conviction behind formalizing computation itself. For Turing, life was a program running on chemistry, continuous with his broader project of showing that mind and nature are mechanistically explicable.
The era
In the early 1950s, biology was being rapidly absorbed into physics and chemistry. Watson and Crick confirmed in 1953 that heredity was a molecular structure, not a metaphysical force. Vitalism — the idea that living things possess some non-physical essence — was collapsing under experimental pressure. Turing wrote at this exact inflection point, when scientists believed the mechanistic program could fully dissolve the boundary between biology and the physical sciences, making life mathematically tractable.
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