I tend to agree in the short run. Nature tends to solve problems with genetic or evolutionary algorithms, and this is very difficult to emulate in current hardware. Efforts are, however, beginning to be commercially useful, and this will start driving research.
This points out one of the fundamental roadblocks to AI. First, nature doesn't have problems. Second, nature doesn't use mathematics. The AI theorists are trying to build on the Turing machine, but nature doesn't use the Turing machine. We'll make more progress by continuing to work on battery technology for our iPhones and iCars.