Carleton misreads Searle
Carleton misread Searle, saying that brain processes or something as powerful as them must produce intentionality. But all Searle's saying is if something's intentional it must have been produced by a brain or something as powerful as a brain.
Dale Jacquette, 1989
Note: Jacquette also thinks that Searle's right causal powers argument is faulty (see "The brains causal powers can be reproduced by a computational system", Box 73) but he doesn't think that Carleton makes a good case against Searle.