Actually, the concept of 3D space is not only limited to the distance between objects but also the object itself.

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Next, this tramp in cosmos shows up the simplest and most basic equation in cosmos. (Pay attention please, I just move relevant information from other threads here and make a brief and systematic introduction.)

有请 the mass space equation: L’ ∝ 1 / M. It’s an equation hidden in SR for one century. (Detailed derivation see the thread “balloon vs SR” in the Relativity column. It can be considered as the derivation from the macroscopic angle.) It demonstrates the basic property of 3D space.

What amazing mostly in the experience of rabbit htam9876’s digging his “eccentric” hole might be that the derivation from the microscopic angle, concerning such complicated course of modeling, charge, SR, particle physics, QM, the result is the same simple: the radius of basic particle r ∝ 1 / M. It demonstrates the basic property of 3D space does not change in microscopic scale. (Relevant details please see those early threads of rabbit htam9876 in the philosophy column. Of course, I have made the course of derivation a bit more explicit now, but I will not post it here.)

Watch the equation in counter way, we can see that so many sophisticated things built on the basic property of 3D space.

According to the mass space equation, it seems not appropriate to say that there must be a minimum value for 3D space theorectially.

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Rabbit htam9876 @ neila9876:

Don’t pull me casually to your thread and play without grass, please. I am tired. Poopoo…