3 ms·

“Who ordered that?” is a pretty famous question in particle physics. I think the commenter is just asking “who ordered neutrinos”? It’s a good question, even if

• pfdietz 2y ago
  That (which was about muons) was about the muon not being predicted. The neutrino was predicted (to explain missing energy in beta decay).
  • munchler 2y ago
    Great. So we have the following: Q. Who ordered neutrinos? A. They're necessary because they carry energy away during beta decay.
    • pfdietz 2y ago
      Is the Q there a made up historical quote? Why, yes it is.