We Are Using Philosophical Criteria in Choosing Our Models

“People need to be aware that there is a range of models that could explain the observations,” Ellis argues. “For instance, I can construct you a spherically symmetrical universe with Earth at its center, and you cannot disprove it based on observations.”

Ellis has published a paper on this. “You can only exclude it on philosophical grounds. In my view there is absolutely nothing wrong in that.

What I want to bring into the open is the fact that we are using philosophical criteria in choosing our models.
A lot of cosmology tries to hide that.”

George F. R. Ellis
Scientific American