Homer Simpson may be many things (a liar, a pig, an idiot, a Communist, definitely not a porn star) but is Homer Simpson a god? Believe it or not, there's pretty compelling evidence floating around the Internet to suggest the Simpson patriarch is secretly the God (or a god).
The Theory of Homeric Divinity would explain a lot. But you don't have to believe us; you can judge for yourself. Here's all the collected evidence that Homer Simpson is God, or a god. And if you like that, you might also dig the notion that all of The Simpson's after Season 4 Episode 18 takes place in Homer's head.
Most cartoon characters seem to live ageless, infinitely long lives. Every character on The Simpsons, in fact, seem to be suspended in time at the same age forever; Maggie is and will always be a baby (with the exception of flash-forward episodes). That's not what we're talking about here, because it's never explicitly depicted as immortality - more a kind of "frozen in time" stasis. Homer, however, has existed in both the ancient past, as shown in Season Two Episode 13, "Homer Vs. Lisa and the Eighth Commandment," and the distant future, as demonstrated in Season Five Episode 4, "Rosebud."
These aren't ancestors or alternate versions of Homer; he is very clearly himself in these different times. Meanwhile, in these distant pasts and futures, other characters either don't exist at all, or exist in an altered, artificial state that has allowed them to survive. Homer is the only one who exists, as Homer, all across the timeline.
Speaking of certain death, The Simpsons is a show in which characters die permanently. Maude Flanders is perhaps the most famous example of this. Homer, on the other hand, seems un-killable. He's had multiple strokes, heart attacks, and suffered horrific physical injuries.
In Season Two Episode 8, "Bart The Daredevil," Homer plummeted off a cliff twice, a fall that should have killed him, or at least caused severe paralysis. He's also been exposed far too many times to radiation at the Power Plant to have never suffered from it. Is he just Springfield's answer to Deadpool, or an invulnerable, higher being? Is there really a difference??
Look, we know that Treehouse of Horror episodes aren't technically canon, so this could be dismissed as alternate universe evidence, but given the context of this argument, it's worth noting. In "Treehouse of Horror VI", the seventh episode of Season 7, Homer crosses into the third and fourth dimensions. That's right - into our dimension, referred to as a "better place" by Reverend Lovejoy.
Homer's the only character on the show to enter the human world. Neither Professor Frink, Hank Scorpio, nor any other great mind of The Simpsons world has come anywhere close to this inter-dimensional feat, which makes him the most powerful person in their world. And no one in our world has been able to successfully enter The Simpsons, means he's more powerful than everyone in our world too. As far as we know, no one else in the Simpsons-verse is even aware of our realm, and yet Homer gets to stroll right in and ogle erotic cakes.
We're going to dive right into the big elephant in the room (in the sky?) first. Homer has literally met and talked with God. In "Homer The Heretic" (S4 E3), Homer hangs out with the Big Man Upstairs. Granted, this is implied to be a dream, but it begs the question: why should Homer, someone who hates going to church, meet God, even in a dream, above someone who has devoted his life to serving him, like Flanders? God even offers to tell Homer the meaning of life, before the credits cut him off (not that Homer was all that interested to begin with).
But, was it a dream? In Season Five's "Homer Loves Flanders" (episode 16), Homer prays to God to bring him football tickets he wants, and moments later, Flanders shows up at his doorstep with them. Either God has a clear case of favoritism, or he's doing his fellow divine being a solid.