How are our brains any different?
Is that even a real question? We think, computers compute. We learn, computers process data. We adapt to new surroundings and challenges, computers give error messages. We feel the consequences of our actions, computers don't. We learn from our mistakes, computers don't.
The human mind is magnificently powerful and complex, and I'm sure computer technology will get there at some point, but I very highly doubt it will be within our lifetimes. Right now, the gap is simply far too large still. A robot that can serve coffee is a long ways away from a robot that can learn new skills as needed, or come up with a rational solution to a problem its never encountered before.