Why Are All Electrons in the Universe Exactly Identical

Night Science Stories · Nov 5, 2026 · 2h 28m · transcript

Why are all electrons in the universe exactly identical? No matter where you find one, inside a distant galaxy, deep within a star, or inside your own body, every electron has precisely the same mass, electric charge, and intrinsic properties.There are no heavier electrons, no slightly different versions, and no imperfect copies. Every electron appears to be fundamentally identical.But why?The answer takes us into the strange world of quantum field theory. According to modern physics, electrons are not tiny manufactured objects scattered throughout space. They are excitations of one universal…