Nope, natural talent doesn't exist. I agree with chizbubble, to a certain extent, that a person's environment does, in fact, affect their strengths and weaknesses. And at SD, humans do start off, psychologically, as clean slates. Read some of Descartes' works, as well as other psychologists. However, this seems to intrude more upon the field of philosophy, instead of psychology.
(i do not know what it is about you that closes and opens; only something in me understands the voice of your eyes is deeper than all roses) nobody, not even the rain, has such small hands.