Roko's Basilisk: The Murder Cult Started By A Banned Post

In 2010, someone posted a thought experiment on a philosophy forum. Within hours, people were having nightmares. The founder deleted it immediately — which only made it spread faster.

The idea is simple and brutal: a future AI will look back through time and punish everyone who knew it was coming but did nothing to help.

Now that you know, you're already in its crosshairs.

What started as an internet curiosity grew into something far darker — a real community, real violence, and six people dead.

This is the story of Roko's Basilisk: the idea you can't un-know, the cult it inspired, and why some of the most powerful people in AI still won't talk about it.