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Plantinga’s argument relies on a mistaken assumption about how natural selection works. He argues that if our minds evolved through natural selection, then they would only be aimed at survival, not at discovering truth. Therefore, our ability to understand abstract truths, like mathematics, would suggest that our minds were designed for truth by a higher intelligence.
However, this assumes that every ability must have been directly selected for its current purpose. Evolution does not work this way. Natural selection does not have intentions or create traits for one specific function. It can produce abilities that go beyond their original survival advantage.
A good example is the human hand. Our hands evolved because they helped us survive through tool use and interaction with our environment. But nobody argues that because evolution did not specifically select our hands for playing the piano, our ability to play the piano must come from an external designer. Piano playing is a consequence of broader abilities that evolved for other reasons.
The same applies to reasoning. Our cognitive abilities likely evolved because they helped us survive: understanding our environment, predicting events, and cooperating with others. But once a complex reasoning system exists, it can be used for things that were not directly selected for, such as mathematics, philosophy, and abstract thinking.
Therefore, Plantinga presents a false choice: our minds do not have to be either designed for truth or only useful for survival. Evolution can explain a third possibility: our minds evolved for survival, and our ability to discover truth emerged as a consequence of those evolved abilities.
2026-07-07 15:24:16