>>17009593<--- What force is acting on this balloon? What is "pulling" it upwards? Can I make up a "force" for that? Of course I can, since it's all in our mind anyway. All just conceptual models. Nothing is proven.
The apple simply falls through the air because it is more dense than air, the air can not support the weight. But water can, and then the apple floats in equilibrium of "weightlessness". There is no force that pulls on anything. You don't feel a force, you feel your own weight.
Your real question is, why is there a distinct UP and a distinct DOWN. That's how God created the world, and He is the highest one. He didn't create an exploded nothingness without up and down, all is "relative", with good and evil being relative, male and female being relative, that's jewish mystic psycho nonsense. No, there is absolute truth in the real world, an absolute UPwards and absolute DOWNwards. And levels between.