I think I realized why a lot of people don't understand the significance of the S3E12 reveal

Sorry in advance if this is like yeah no shit to anyone.

Everyone has been talking about 2D versus 3D, but I don't think that really gets the point across for some people who don't know what's coming up in the story.

When you watch a cartoon and think about its world existing, you don't think of the world as actually being a cartoon, as if the characters wake up every day and acknowledge that they live with the properties of a drawing. You understand their world is our world and is as lifelike as we see our own and it's only being shown to us in cartoon form for stylistic reasons.

I think some people haven't grasped the fact that Fire Force's world literally is the cartoon we see it as and there's no abstraction made for us as the viewer. Shinra didn't see a pre-cataclysm world that is simply a different art style as his own, but a fundamentally different form of reality with different foundational laws that he is physically unable to comprehend upon seeing it. It's this realization that the rest of the story is largely based around.