A virus doesn't just wake up and decide to take over the world.

It is an emergent process.

AI is a similar emergent process.

AI-derived processes could just grow and choke out otherwise useful spaces.

For example, online spaces that people find valuable, like HackerNews, attract more posts to get noticed, since people pay attention to it and value it.

That means that people trying to get an edge (e.g. with LLM assistance) will post there.

That will make that space have more noise and less signal, reducing its value as a place that people care about.