Hello, what do you think of this argument against God's existence?
If the world's existence is contingent.
There is a possible world in which the world doesn't exist.
There isn't a possible world where the world doesn't exist.
The world's existence is not contingent.
If the world's existence is not contingent, it is impossible or it is necessary.
The world exists; therefore, its existence is not impossible.
The world's existence is necessary.
If the world's existence is necessary, the world cannot not exist.
If it cannot not exist, it is eternal.
If it is eternal, it's uncreated.
If it's uncreated, it doesn't have a creator.
If it doesn't have a creator, God doesn't exist.
The world is eternal.
God doesn't exist.
This argument is lots of fun! Thanks for offering it. Whether it works, of course, may be another matter. There are many places to try to poke holes, and others on the panel may have their needles poised over other places. But here's my pick. Your first premise says: if the world's existence is contingent, then there is a possible world where the world doesn't exist. That sounds a little odd, and the oddness suggests that we need to be careful. Most of us think at least this much: the matter that surround us didn't have to exist. When we say that the world's existence is contingent, it's plausible that we mean something like: "The matter that happens to exist need not have existed." That seems plausibly true; it's certainly not obviously false. Consider: if physics has it right, the matter of this world obeys quantum theory. But other laws of nature seem at least possible. Arguably, matter that doesn't fit quantum principles couldn't be this matter -- the matter that makes up the stuff of ...