Can't remember I did, no.

But have you ever imagined that the universe is infinitely large in extent and infinitely old?

And you may ask then, why to conclude that?

Cause that is the only way, the universe could possibly be, in a way that the universe is "all there is" and be self-contained.

Every other possibility causes either it to expand, contract or oscilate. But how could that be, if it is supposed to be self-contained?

In an infinite universe, contraction happens eveywhere. That is what we see as stars, galaxies, clusters, super-clusters, and so on.

Yet, we can never see infinitely far away, cause all light coming from infinitely far is in infinitely many ways 'disturbed' ,and in fact we only see the remnants of that light as the CMBR.

Quite amazing isn't it, to conceive of this in a logically self-contained way, without hocus-pocus of 'creation ex nihilo' things, and 'super-natural' causes.