> neutrinos come in one of three possible “flavors” — electron, muon or tau This reminds me of the Koide’s coincidence https://news.ycombinator.com/item?id=17

> neutrinos come in one of three possible “flavors” — electron, muon or tau This reminds me of the Koide’s coincidence https://news.ycombinator.com/item?id=17961139 https://news.ycombinator.com/item?id=17961139 So the arithmetic mean(p=1) mass of (e, μ, τ) is twice of square-root-mean(p=1/2) mass of (e, μ, τ). the p=1 and p=1/2 are defined in “generalized mean”