Breakthrough on 125 Year-Old Physics Problem

David Hilbert’s Sixth Problem is 125 years old and asks for an axiomatic foundation of physics. A good place to start with this, said Hilbert, would be fluid dynamics – physicists should be able to prove that our fluid dynamics equations are rooted in how we understand atoms behave when they bump into each other. This would also explain the origin of irreversibility in our lives, or the “arrow of time” as physicists like to say. Over a century later, mathematicians have made a major breakthrough in this arena. Let’s take a look.