I think you are missing the point of the parent post.
He is not stating that the 10,000 rule will make you a jack of all trades. He is saying that he was able to cut down the "10,000" hours to less because of his transferable skills. S/he might not be an expert in these transferable skills, but s/he might be an expert in his business which is sports science.
> He is not stating that the 10,000 rule will make you a jack of all trades.
But that's not what he described.
> S/he might not be an expert in these transferable skills, but s/he might be an expert in his business which is sports science.
Sure. We all have transferable skills. I don't think the 10000 hour rule meant that you start off with a blank slate and went from the basics of learning language, mathematics, etc.
The 10000 rule is part learning and part practice/muscle memory/etc.
In other words, it "includes" transferable knowledge.
If you know latin, you'll have an easier time getting competent in italian. But to become an expert in italian, you still need to go through the 10000 hours. That's the idea of 10000 hours. I don't believe in the 10000 hours mantra, but that's my understanding of it.
He is not stating that the 10,000 rule will make you a jack of all trades. He is saying that he was able to cut down the "10,000" hours to less because of his transferable skills. S/he might not be an expert in these transferable skills, but s/he might be an expert in his business which is sports science.