What grinds my gears right now is how prevalent innumeracy is. Or rather, people confidently and loudly spreading nonsense while also not understanding extremely basic math.
Like a prominent flat-earther who constantly tells his cultish followers that the 10^-17 Torr (pressure) of space is a negative number, meaning that space supposedly has a "negative pressure" and that the vacuum of space should suck the Earth's atmosphere right off it. Not only is the math and science misunderstood, but also they think that "vacuum" means like a Dyson.
Oh wow, really? By that same logic, we should all be dead.
You'd think the obvious fact that space doesn't suck all of Earth's atmosphere right off of it, would tip him off that his logic is flawed. (Not to mention all of the other things he clearly forgot to take into account, including gravity, magnetic fields, ect).
It's like those people who come up with a design for a perpetual motion machine, and honestly believe it works. You'd think the fact that it doesn't work, would be enough to convince them that it doesn't work. But it isn't.
