There is no explanation. It's just a fact we observe. Like magnets attracting: it's just what happens. Feynman talks interestingly about the nature of these fa

There is no explanation. It's just a fact we observe. Like magnets attracting: it's just what happens. Feynman talks interestingly about the nature of these facts: https://www.youtube.com/watch?v=MO0r930Sn_8 https://www.youtube.com/watch?v=MO0r930Sn_8