I feel like hiring wise, this post is really very substantially about experience.
I think that wasn’t that clear from the post. I read it as saying that you can have a talent for each of the 4 skills, and that experience with each skill isn’t transferable. Past experience in a skill is only relevant as a proof that you have a talent for that category.
I was sceptical, so I tried to make Claude guess who wrote one of the test paragraphs, and it guessed correctly and was 75% confident. I asked it not to use internet, but i didn‘t verify that it didn’t use google.