It's been widely published, and the physics commentators on the science forum described it as as good as any other way of getting to grips with general relativity, so it's not likely to be wibble.pErvinalia wrote:Eyes glazed over trying to read that paper. It's not mobile friendly, so each line is chopped to bits. I'm sure they've thought of this, but I'll point it out nonetheless.. If light moves relative to the framework of space, then that means the speed of light (in different parts of space) is not invariant. Which is of course incompatible with relativity. Not sure how they wibble their way out of that one, but I couldn't read enough to find out.
The speed of light isn't invariant. It's invariant as measured by any observer, which isn't the same thing.
A third party can measure speeds of more than the speed of light. If I measure the closing speed of two rockets, travelling at 2/3 the speed of light head on to each other, I get a figure of more than c.
But if I'm on one of the rockets, I measure the closing speed as less than c.