It's a good list of skills. I don't find them all so linear, I'm sure most of us have bits and pieces from all of the squares, even though it says explicitly t

It's a good list of skills. I don't find them all so linear, I'm sure most of us have bits and pieces from all of the squares, even though it says explicitly that you have to know all of the proceeding skills in order to move to the next column. I can't help thinking when I read these lists, though, that they probably favor the author's particular skill-set and experience. Maybe not necessarily the author's current state, but perhaps where they'd like to go or what skills they aspire to have.