I will argue that in the literal sense the programmed computer understands what the car and the adding machine understand, namely, exactly nothing. – John Searle
My car and my adding machine understand nothing: they are not in that line of business. – John Searle
We often attribute understanding and other cognitive predicates by metaphor and analogy to cars, adding machines, and other artifacts, but nothing is proved by such attributions. – John Searle
Consider the perverse effect cap and trade has on altruistic actions. Say you decide to buy a small, high-efficiency car. That reduces your emissions, but not your countrys. Instead it allows somebody else to buy a bigger S.U.V. – because the total emissions are set by the cap. – James Hansen