The human brain isn’t accustomed to navigating a world where it’s hard to tell the difference between objects and animals. For almost all of human history, that has been easy: if it’s trying to interact with you, that’s an animal. End of story. Maybe there was a tiny bit of a gray area around plants, but it’s not like rocks were jumping out from behind trees to tell cavemen what kind of crackers are on sale at CrazyLand. Rocks can’t do that. I don’t know if they’d want to, but it doesn’t matter, because they can’t.
