This misses the point a bit due to an equivocation on "assume". In ordinary discourse, it usually means "assume for the purpose of action until you encounter contrary evidence". That's very different from the scientist's hypothetical assumptions that are made in order to figure out what follows from a hypothesis.
In ordinary discourse, it usually means "assume for the purpose of action until you encounter contrary evidence"
It's epistemically incorrect to adopt a belief "for the purpose of action", and permitting "contrary evidence" to correct the error doesn't make it a non-error.
Another monthly installment of the rationality quotes thread. The usual rules apply: