Two important changes to timeline recommendations:
- New AI/SI ranking model that predicts probable time spent much better
- Retrieval model trained to surface posts people read all the way through
User active seconds is growing exponentially and hitting all-time highs almost every day:
Oct 20, 2026 · 2:41 AM UTC
Is it AI or SI? Did your boss @realDonaldTrump give you conflicting orders?
I never really liked Twitter but X.com is really good and getting better all the time thanks Elon!
...❓️ so if you post REAL thoughtful content > 1 long sentence.. and they dont scroll to the bottom, or click on all attachments/ posts in a chain.... it gets dropped??🤦♂️. 👉Sounds more like reinforcing & promoting #short-form #attention span #EROSION, no ??

































