If those limitations are hard to measure, nearly impossible to judge at a glance, and are not guaranteed to even be present in an individual, how do you have a

If those limitations are hard to measure, nearly impossible to judge at a glance, and are not guaranteed to even be present in an individual, how do you have a discussion about their effects on a person's success? Either way, my point was that I felt you should ignore physical attributes not related to mental abilities when discussing talent. I think using them as examples of "talents" making a difference just confuses the issue.