At the moment, we compare authors instead of books because combinations of same books are more rare than combinations of same authors - while latter still satisfies 'same taste' condition. The main assumption with books is that likeminded people have the same exposure to the same books. But that's questionable. Comparing the authors widens this, and perhaps extending with similar authors widens this even more.
At the moment, we compare authors instead of books because combinations of same books are more rare than combinations of same authors - while latter still satisfies 'same taste' condition. The main assumption with books is that likeminded people have the same exposure to the same books. But that's questionable. Comparing the authors widens this, and perhaps extending with similar authors widens this even more.