User blog comment:Fusedtwilight/Possible Season 11 Plots/@comment-3045936-20150521200018

I am surprised they introduced something like the Darkness. I was right that back during season 6, what would be possible for a season 7 big bad. I said Chaos as Sera Gamble the showrunner at the time was toying with something like that, but in favor of Leviathans and season 8 Word of God themes. While, not very similar to Chaos, they did take a similar concept from Genesis. As Dean guessed that Genesis was not accurate, it depends on how you look at what darkness can be.

It could be seen accurate even though Death stated creatio ex nihilo wasn't really true. God even in Genesis said let there be light. The Darkness could be seen as, nothing in the sense as no light or life, not emptiness. As darkness is credited as what can reduce something to nothingness at least in Fantasy genre. They took the state before the world that is found in many religions, and introduced it. The Darkness in my opinion is all the nothing that predates God's work. But, when God started creating it as by its nature tried to return creation back to a void of darkness.

I think the Darkness will infect living things. That will cause them to destroy the Earth.