 The basic structure of Searle’s argument is very well known. We can imagine a “hand simulation” of an intelligent agent—in the case described, a speaker of a Chinese language—in circumstances in which we might well be very reluctant to allow that there is any appropriate intelligence lying behind the simulated behavior. (Thus, what we are invited to suppose is a logical possibility is not so very different from what Block invites us to suppose is a logical possibility. However, the argument that Searle goes on to develop is rather different from the argument that Block defends.) Moreover—and this is really the key point for Searle’s argument—the “hand simulation” in question is, in all relevant respects, simply a special kind of digital computation. So, there is a possible world—doubtless one quite remote from the actual world—in which a digital computer simulates intelligence but in which the digital computer does not itself possess intelligence. But, if we consider any digital computer in the actual world, it will not differ from the computer in that remote possible world in any way which could make it the case that the computer in the actual world is more intelligent than the computer in that remote possible world. Given that we agree that the “hand simulating” computer in the Chinese Room is not intelligent, we have no option but to conclude that digital computers are simply not the kinds of things that can be intelligent.