from elementary school science classes all through high level college-level courses, we're taught that the earth is a living thing. we're also taught that through newton's third law, everything that pushes down has an equal, but opposite force exerted upon it. therefore, the earth itself is both living and pressing on every single thing on its surface. every single weight. every single person. every single car. every single house. every single thing with mass is pressing down on the earth, and the earth is pressing back on it with an equal force.
therefore, going by the earth being 12756000 meters tall with a mass of 3.566x10^49 kg, we can assume the earth's BMI is 2.8x10^42 kg/m^2. and that's not fat. feel the earth right now. it might be a little squishy due to necessary fat, but it's largely rock hard. the earth is a fucking tank.
so going by the fact that the earth is a fucking shredded cunt with a BMI of 2.8x10^42 kg/m^2 that can lift every single thing with mass on the surface of itself, i'm inclined to believe the earth itself is the best example of "natty limit" that we have. of course it has ideal genetics, so your results my differ.
