Matthew Garrett

Belief in natural born ability, as described in the linked work, results in individuals who are just as competent failing to achieve as much as individuals who believe that they're naturally gifted. The context isn't that there's absolutely no variation between people's intrinsic skillsets, just that it's small compared to other factors. Believing that some people are just naturally talented at programming (rather than, say, physics, writing or architecture) isn't borne out by the evidence we have, and citing anecdotes as a counterpoint isn't robust discussion.