Well?
Is light attached to space?
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What is "space"?
I suppose everything is "attached" to space in that sense, which is probably why gravity affects everything.
space-time I guess? whatever it is that GR says it is
do gravitational waves operate on the same thing that cosmological expansion does?
Bump
today i gave up on cosmology
everything is attached to space IDIOT
wait, but then that means everything is also attached to light????
I give up when I discovered that all the fundamental proof they have to claim something like the Big Bang and the expansion of the universe was some distant almost unnoticeable lights being a little more red than normal and the assumption of that being because of Doppler effect.
If you're gonna claim that the whole universe is exploding you need a stronger proof than that.