I believe "eternity" is a well-defined notion of endless time.
t \in \mathbb{R} if latex would work here.
No beginning and no end, the cosmos is created and destroyed everyday.
We have preconceived notion of a time interval of beginning and end, but then how can existence pop out of nothingness? You need to assume that something has always existed, may it be God, Universe, quantum fluctuations or what you have not.
From absolute nothing, nothing can come to be, and that's pure logic, no magic!
Where I take nothing as the absence of something, your mind cannot even imagine a situation of absolute nothingness, we always think of something, even when I stare at the thin air I think of something, I mean there's space between me and the air.
I agree that there's no room for dialogue, as in everything in philosophy, these matters have been discussed endlessly, I believe there's no room for creation because that would say that there is room for magic. When I find something in math, I don't create from nothing, I have a preconceived notion of arithmetic and geometric ideas.
How did anything come to be from nothing?
There's a universal mind that imagines everything, but he doesn't create anything, they are all part of him.
If something were to come from absolute nothing, then we should equation them the same.
Perhaps this is the barrier of the language that doesn't let us go beyond our limitations of communication.
dunno...