This talk was presented at CIMAM 2025 in Turin, Italy. 0. THE BIG BLUE Recently, on a transatlantic flight, I rewatched the Pixar classic, Finding Nemo. I’d never actually finished it before — the premise gave me too much anxiety: A clownfish named Marlin loses his son Nemo to a scuba diver’s net, and decides he’s going to cross the entire ocean to find him. I remember ...