We're running experiments to fine tune to Warpcast feed. If you see anything that gets better or worse, let us know. 

Here's how it works today at a high level:  

Selection - find casts that you might want to see 
Ranking - determine the best casts  
Ordering - rearrange them to keep things fresh

Warpcast machine learning algo has made a lot of progress the last few months. Finally starting to win in head to head vs. heuristics algo feed.

Instagram recommendations have a similar architecture. Super fun design space and prob lots of low hanging fruit