> [Einstein's General Relativity] tells us that the universe is expanding
Does GR really tell us that though?
The way I understood it, GR's differential equations will produce solutions for many different constraints and initial conditions you throw at them. Including the constraints & conditions informed by astronomical observation.
> [Einstein's General Relativity] tells us that the universe is expanding
Does GR really tell us that though?
The way I understood it, GR's differential equations will produce solutions for many different constraints and initial conditions you throw at them. Including the constraints & conditions informed by astronomical observation.