A chinese person's view : All Indian faces look almost the same..
Isnt it facinating how our brain works.. I remember reading an article about associative memory, which is so beautifully illustrated by this similar faces perception.. Our brain associates new patterns with what it has in store. New faces, new patterns.. When he looks at us, he asociates all of us with an Indian face.. It takes time to register finer patterns of a new race in memory..
And whats more fascinating is the fact our brain doesnot easily get confused with different people, even when we might meet so many new people frequently. This is beacause of this associative memory we have got. And probably not many people know why we have this kind of memory.. This is because of the massive parallel neural network we have inside our head.. The best computer ever made.. When we do memory improving problems, we are making our neurons learn how to associate quickly and to work together in a better possible way.. not a single parallel computer is more efficient than a mere 1% of our brain.. These neurons work together in parallel to compare new patterns and old ones, and provide us back with an instant recognition of a pattern.
Nature always does everything in best possible way.. Nothing beats it!!