We could do much better with access to online libraries (which don't exist, apart from the very limited sample from these books accessible using Wikipedia).
Current (blogs and articles and forums) online resources provide information at a rate book search just can't provide.
There are many, but all short of the potential for knowledge and learning:
Internet Archive Lending Library, Hathi Trust, Libby / Overdrive, U. of Pennsylvania's Online Books Page:
https://onlinebooks.library.upenn.edu/
There are also the shadow libraries, of course.
I optimize for finding the answer to a given question, without knowing beforehand if it will be found online or in an research article or in a book.
And I mean finding the right answer, before you mention "learning" like it is something that can't be done using computers.
Trillions and trillions of dollars of technology later, and the best we can do now is fly by and wave.