what really defines talent?

[ryanyee]

well this question's still bugging me i still dont get it when ppl say im talented i just dont see how i am im hardly capable of playing a single piece without making ridiculous mistakes or at least getting all mistakes corrected in a short matter of time. and my teacher says that everybody starts off as students no more than what everybody is but if thats the case why isnt everybody else a world class musician then? isnt everybody capable of mastering say a bach concerto and playing it with the correct articulations tones emotions and stuff?