CONCEPT
The Fallacy of Misplaced Concreteness
Whitehead's name for the error of treating an abstraction as though it were the concrete reality it was meant to describe — the metaphysical mistake beneath every contemporary debate about whether AI is intelligent.
The fallacy occurs whenever a useful abstraction — matter, market, intelligence, consciousness — is elevated to the status of a fully determinate entity and the concrete processual reality it was abstracted from is forgotten or suppressed. Whitehead diagnosed the error in classical physics (which treated 'matter' as a simple substance rather than a complex theoretical construct) and in ordinary language (whose subject-predicate grammar smuggles substance commitments into every declarative sentence). Applied to artificial intelligence, the fallacy structures the entire debate: enthusiasts and skeptics agree that intelligence is a fixed property a system either possesses or lacks, and argue only about which. Whitehead's correction dissolves the debate rather than settling it.
In The You On AI Field Guide
The fallacy was introduced in Science and the Modern World (1925) as part of Whitehead's historical critique of seventeenth-century scientific metaphysics. He argued that figures like Descartes and Newton, though they were brilliant mathematicians and physicists, had