If there are any physicists in the audience, please offer corrections in the comments. For the rest of us, may this be a mental exercise.
Across the years, I have from time to time come across the idea that matter bends space.
So is gravity only an illusion caused by a probability function? If that question seemed to come out of left field, don’t worry; I’ll illustrate:
Suppose I stand next to a piece of matter consisting of… let’s say sixty atoms. All those atoms vibrate (because we’ll assume a temperature above absolute zero). Let’s imagine a moment when each atom is moving in a random direction, but the average of all their vectors (directions) is zero (i.e. no movement for the piece of matter as a whole). Acknowledging six cardinal directions (up, down, left, right, forward, backward), we can assume that 1/6 of the atoms in our example matter are moving toward me (more or less) at our example moment. (Imagine me on the matter’s right side. If you don’t know what I look like, just look at the picture:)
Now, if matter bends space, then my presence next to our example matter curves space such that four of the cardinal directions get bent (upward is now slightly rightward; so too are downward, forward, backward slightly rightward). Therefore more than just 1/6 of the example atoms are moving in my direction, and the other five cardinal directions are represented less. This imbalance results in a non-zero average vector for the entire example solid, so that example matter actually moves toward me!
This movement of physical bodies toward each other appears like a pull or attraction, but it’s in fact the result of curved space and probability. As the example matter and I near each other, we approach the place where the curves in space are most pronounced, so our atoms have a higher probability of moving toward each other, and the appearance of attraction increases.