Asians are definately physically inferior...
You notice a lot less natural muscle definition on the men, and the girls like me tend to have flatter bottoms
combined with less height, flat feet (almost all asians have flat feet.. not sure if that's good or bad, but the army doesn't like you if you have flat feet)...
Of course, our shorter stature gives us better, stronger spines...
as for mental... well that's a tough one, as other people said, we're pushed harder to succeed, and tend to have a greater work ethic....
do we have better brains?? dunno!! Might in 4000 years if our cultures continue the way they are!!
that being said, I think again, the brains are nearly equal, and we just work harder..
I'd say asian and caucasian are just 'different'...