Don't forget electrons. Without them, you'll see something violent, up to instant black hole (relevant xkcd: https://what-if.xkcd.com/140/ https://what-if.xkcd.

Don't forget electrons. Without them, you'll see something violent, up to instant black hole (relevant xkcd: https://what-if.xkcd.com/140/ https://what-if.xkcd.com/140/ ) P.S. Quote from the link: > Would this black hole cause the universe to collapse? Hard to say.