What are inertia, energy, and mass? How do the laws of physics emerge?

According to modern scientists, such as quantum physicist Alexey Semikhatov, not a single law in physics can be proven. All physical formulas and laws are simply "guessed." This is unsurprising, since by denying the ether, scientists have simply disabled their own understanding of it. And now they invent one chimera after another, confused by their number and interactions. But how is Matter actually created, how are physical laws created, such as Inertia, Momentum, and what is Energy? Why do the laws of physics work the way they do? Can the existence of the ether somehow explain fundamental and basic physical laws and concepts? Let's try to figure this out.