> However, they were shit, because they didn't involve 4 years of AI research to develop the world's most sophisticated head positioning system ever, like Amazon apparently did.

As someone with some experience with amazon's kindle labs, IMHO, the only accurate part of this statement is that Amazon invested 4 years in it.

Also Bezos isn't focused - he's a micro manager, who is constantly muddling the work of the people he's hired, to ill effect.