It is also difficult to see what the legal basis would be for allowing people to read books if Amazon's use isn't fair. If I read a textbook and come up with an

It is also difficult to see what the legal basis would be for allowing people to read books if Amazon's use isn't fair. If I read a textbook and come up with an algorithm based on it that gets used at scale, is that supposed to be a copyright violation? The basic point of a book is for people to (a) read it and (b) synthesise it into a comprehensive world model. And people can burn their own books if they want to, they own the thing. The only possible complaint here seems to be the scale and it seems like a big challenge to say that is a problem given that knowledge from books is allowed to be used at scale.