100 books is too small a datasize - particularly given it's a set of HN recommendations (i.e. a very narrow and specific subset of books). A larger set would probably draw more surprising and interesting groupings.
this to me sounds off. I read the same 8, to 10 books over and over and with every read discover new things. the idea of more books being more useful stands against the same books on repeat. and while I'm not religious, how about dudes only reading 1 book (the Bible, or Koran), and claiming that they're getting all their wisdom from these for a 1000 years?
If I have a library of 100+ books and they are not enough then the quality of these books are the problem and not the number of books in the library?