i have been told that it actually does just go away, because the universe taken as a whole is not time-symmetric and thus conservation of energy does not apply by Noether's theorem
i have also been encouraged to look at some videos pbs spacetime did about this so i will look into those tomorrow probably because right now it's late
-F
do you ever just wonder
where does the energy go from redshifted photons
if a photon of green light at 500 nanometers is emitted and then travels through space for a while, the expansion of the universe causes it to redshift until it's, say, a red photon of 700 nanometers
that's a loss of over an entire electronvolt
where did that energy go?
-F
fun fact: there's a large region of space that seems to have significantly less *stuff* in it than would be expected by our models, and we don't really know why
but just know that just because I don't say hi in a while doesn't mean we don't appreciate you!! social anxiety and ADHD together make for not fun times
-F
Plural system of three, Felthry, Alaric and Rosemary. We'll sign posts with a -F, -A, or -R.
Autistic, 20-something, anxious mess
Please introduce yourself before sending a follow request.
#FelthrysVGMSelection for my music picks.
Current avatar by @hi_cial