[T]he physicist Steven Weinberg, in Dreams of a Final Theory (1992) … distinguishes between uncompromising… — Daniel Dennett

[T]he physicist Steven Weinberg, in Dreams of a Final Theory (1992) … distinguishes between uncompromising reductionism (a bad thing) and compromising reductionism (which he ringingly endorses). Here is my own version. We must distinguish reductionism, which is in general a good thing, from greedy reductionism, which is not. The difference, in the context of Darwin's theory, is simple: greedy reductionists think that everything can be explained without cranes; good reductionists think that everything can be explained without skyhooks.

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