While I agree that training is a large part of sailing/racing well, "talent" does certainly exist and is important. I think everyone can agree that different people have different strengths and weaknesses - the origin of those, be it through upbringing, nutrition, or if we are hardwired to certain dispositions at birth, is debatable. However, no matter how much training you give a kid, not everyone can be a child prodigy viola player at age 12, an upper echelon physicist at 30, or a champion sailor at any age.