Because normal matter also interacts with itself, gravitational collapse behaves differently for normal matter than for dark matter. When a clump of normal matter gravitates, it begins to collapse. The collapse occurs along the shortest dimension first, but normal matter interacts and collides with other particles of normal matter, the same way your hands, even though atoms are mostly empty space, “clap” together when you attempt to pass them through one another. This creates a disk of matter, which then rotates: this is the origin of everything from disk (spiral) galaxies to solar systems which have their planets orbiting in a plane. The dark matter, on the other hand, doesn’t collide with either itself or with normal matter, meaning it remains in a very large, extremely diffuse halo. Even though there’s more dark matter than normal matter, its density in, say, our galaxy, is much lower where objects like stars are found.
plete view of e… minds, these vulnerabilities never get patched, they are just the way we work. They’re in our DNA. The human mind is a static, vulnerable system that will come increasingly under attack from ever-smarter AI algorithms that will simultaneously have a complete view of everything we do and believe, and complete control of the information we consume.