Yeah - it’s a wildly different paradigm. It’s not quite the same as Erlang/OTP, but it requires a mindset shift much like learning OTP and thinking of callbacks on an event loop working together. Users can interrupt code when they want, and aren’t obligated to take a blessed path of actions.

I will say that some of the complications he mentions are from web apps needing to compile down to a single executable, on a platform that only really supports one interpreted language. Perhaps WASM will help here, over time.