We've all got those fears and anxieties that keep us up at night, and some are more existential than others. There's a lot of knowledge out there about the universe that seems to serve no purpose except to upset us, so naturally a bunch of Redditors decided it was a great idea to hash them out in a thread where everyone shared the scariest theories that they know.
There's a reason that most of us keep ourselves busy with meaningless things in our everyday lives, and it's to stave off the existential crisis brought on by knowledge like this. Enjoy!