Apparently, Buoyant Force is caused by a difference in water pressure. So am I correct in thinking that this means if you have a cube (chosen so that buoyant force does not come from the sides, just from the bottom) at the bottom of a pool, there would be no buoyant force? How could there be a buoyant force if there's no water below it pushing up? So if the bottom of the pool were a scale, and the cube were all the way on the bottom (with no water between) doesn't that mean it would actually weigh more? (normal weight + weight from water pressure above) And that when people ask that hypothetical question, "What would you weigh on a scale underwater?" and expect the answer to be your weight minus the buoyant force, wouldn't that answer only be approximately true? (Since some of the buoyant force from below your feet doesn't exist. It would still be approximate though because the majority of the buoyant force would likely come from the irregular shape of the human body.) I have a feeling that I'm wrong in thinking this but I cannot seem to figure out how there would be a buoyant force (on a cube) without water being beneath it.