It does not matter, Deep Blue can outsmart some of most professional players of chess. And that is already making a machine ahead of humans. Besides, the power of computers doubles every 2 years if you didn’t notice – all it takes is time and money.
I bet it is possible to make computer think and act like humans do, but the problem is the processor speed. Even if we do make a machine like that, it will require really long time to learn even the simplest things. Besides it is going to be less intelligent then the dumbest person alive.