Death of the sampling theorem?
I love this post for two reasons. First, it's a great reminder to question assumptions about high abstraction mathematical models that tries to say something about reality. And to not take what a community of even scientists say as stable truth. Ask a room full of signal processing engineers if it's possible to do better than the sampling theorem, and they'll confidently – with bravado – tell you that such an idea is ridiculous. Second, the end is a great example of a "proof by incentive" argument, which is one of my favourite ways to produce trust in a theorem.