Timelines, timelines.
Twitter timelines.
https://www.niemanlab.org/2018/08/jack-dorsey-says-twitter-is-suggests-its-experimenting-with-features-to-promote-alternative-viewpoints-in-peoples-timelines/
https://venturebeat.com/2018/08/16/twitter-kills-third-party-push-notifications-and-auto-timeline-refresh/