Starting with books with an intention to go into all e-commerce seems like a good plan to expand into a large domain from a hard problems side, then he could do

Starting with books with an intention to go into all e-commerce seems like a good plan to expand into a large domain from a hard problems side, then he could do it again with AWS. By that point size alone was advantage. Manufacturing a fitness product with streamed classes seemed to be tackling the hardest part of what domain? Sure they could try random things now, but where are they ahead of a media, robotics, car or e-commerce firm? Investors are quoted as thinking he doesn't know what he is doing so probably he shouldn't have built up staff with no new market to enter with an advantage.