Flying Spaghetti Monster created the universe. Perhaps the universe was created by an extraterrestrial named Ted who accidentally blew up his apartment while trying to make beer.
Maybe most of the world leaders are actually shape-shifting lizards. Maybe our bodies are host to immortal alien spiritual beings called thetans that are here because Xenu blew them up with hydrogen bombs...or something like that. Hey, it's possible!!!
I could go on and on and on. The point is that I don't give a crap about what is possible because, again, lots of things are possible. What I'm interested in is what's probable. All of these things that I have listed are possible, but they all lack evidence to support them. Thus, they are highly improbable. And I'll continue to ridicule people who actually believe in any of these things without any or even just lousy supporting evidence.