## 4. New people keep discovering the debate for the first time
A topic that feels exhausted to longtime internet users is often brand new to someone who just joined the conversation. Every wave of new users effectively resets the debate, even though it feels, to old hands, like nothing new is being said.
## 5. Taking a side has become identity, not opinion
Once a position on a topic becomes attached to a broader sense of identity or values, changing your mind in public starts to feel like betraying a group, not just updating a belief. That raises the cost of agreeing with the other side far above the cost of just continuing to argue.
## 6. Nuance doesn’t perform well, so it rarely gets posted
The most viral comments on a divisive topic are almost always confident and simple, because nuanced, conditional takes get less engagement and less visibility. This skews the visible debate toward two extreme poles, even when most actual opinions sit somewhere in the middle.