“Tastemates”: somewhere out there is someone who likes all the same [books/movies/music etc] as you. 

Have an algorithm find that person and surface the things they love that you haven’t discovered yet.

Makes the recommendations more trustworthy.

Crypto/web3. Author of Read Write Own

readwriteown.com

If we can generate recommendations and social feeds based on faves plus wallet activity (as much as users or anons are willing to opt in), that’s a start? Tie privacy prefs and affinities in at the ENS level?