Is the Universe Amplifying or Shrinking the Cosmic Micorave Background?

This is a very powerful way to measure the curve to the universe over a very, very large scale. Even though those photons started out not that far apart from each other, they've traversed a huge amount of the universe cause of that expansion. And so what we've found when we measure this is that the universe seems to be very, very close to flat. Within zero point four %, it's flat, like this is a number we measure. But i guess, you know, one question i would have as a sceptic is that this is based on our measurement of the universe compared to what we expect,. but isn't what we expect also sort of warped by our view of