I think the concepts of infinity and eternity are psychological problems for humans at this stage of our brains evolution because we perceive boundaries all around us, and the two aforementioned concepts are void of boundary. We can’t conceive of everything in the universe not having an edge to it and being bound or constrained in some way. However, the universe and cosmos might be boundless and eternal, and we have a difficult time wrapping our minds around that idea.
Even our philosophies of life/death are built around beginnings and ends. For thousands of years now Theologies and Religions have helped to try and explain eternity, or at least hope for it. Today Theoretical Physicists and Philosophers of Science do the same.
An infinite and eternal cosmos seems logical to me, with boundaries and constraints within.
Quite an answer, take me some time to digest that.
