![Exposing PseudoAstronomy show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/037/270/small/exposing-pseudoastronomy.jpg)
Summary: A classic young-Earth creationist claim is that spiral galaxies would wind themselves up and become a uniform disk if they had been around for millions or billions of years. In this episode, I go through this basic claim and why a basic misunderstanding of spiral galaxy arms leads to its conclusion.