Interesting, indeed. The brain power comes mainly from a huge "3D true parallel network" which emulation with current technologies, simultaneous memory accesses etc... makes the current computers power somewhat relative...
As for "bruteforcing" the brain behavior, that's probably not that simple. For instance, the Travelling Salesman problem, while very hard to solve algorithmically, has at least a bruteforce solution easy to implement (while it'd take a long time - M years - to complete with even a rather small number of cities...). The brain? Do we even know how to model the "problem"? Then, bruteforce... That makes the TSP rather easy, in comparison...