> The rules that govern galaxies, particle beams, atomic clocks, mechanical watches, and human observers are the same. And we do not know what those rules are.

> The rules that govern galaxies, particle beams, atomic clocks, mechanical watches, and human observers are the same. And we do not know what those rules are. We have 2 widely accepted guesses: quantum physics and general relativity that have each been incredibly succesful in their predictive power. The problem is, we do not know how to make these theories consistent with each other. Either relativity is wrong on quantum scales, or QM is wrong on relatavistic scales. Probably both.