Talent! What Talent?

Many will merely say be born with talent, coldly suggesting that writers are born with a particular amount of potential, and that one either has this or not. And you know? There is a certain amount of truth to this. It is hard to argue with the idea that geniuses like Mozart or Shakespeare were gifted. But the nature versus nurture argument is both fascinating and, for the average person, irrelevant. After all, since we cant go back and choose our grandparents, what are we to do? Just abandon our dreams of excellence if we dont happen to be one of the gifted few?