… is from page 68 of Steven Pinker’s 2025 book, When Everyone Knows That Everyone Knows…:
Rationality is not like a buyer and seller haggling over a price until they split the difference. After all, why should we expect reality to just happen to lie midway between the convictions of two people who find themselves in an argument?


Rationality is not like a buyer and seller haggling over a price until they split the difference. After all, why should we expect reality to just happen to lie midway between the convictions of two people who find themselves in an argument?
