Thought Experiment Dilemma (2/2)
Make one specification: every particle is an electron, with 511 keV of rest
masss and -1 unit of electric charge.
Box 2 has 511 keV of kinetic energy. Electric charge cannot be split into fifths. The box with 6 charges now has 5 moving charges. One unit of electric charge has been destroyed.
The data for electric charge conservation is exceptionally good.
The thought experiment is flawed, so gravity does not bind energy-momentum.
7/8