Well, we think of everything as having a beginning at times because our life has a beginning, as Priamus said. I don't find eternity irrational, just hard to imagine.
BTW, is something that is timeless bound to be eternal?
Quote:I like to think of atom: they have no charge, or rather, the charge is nothing. But the charge isn't really nothing, it's just an exact balance between positive and negative. Perfect balance equals nothing.
I think we really have to define nothing here then.
Nothing, metaphysically defined as the absence of anything.
Perfect balance of something does not always equal to nothing, and in fact, it doesn't according to the above definition because there is obviously something producing the balance. In the case of atomic charges, the net result of a balanced + and - charges does equal to a neutral net charge, but the charges within the atom does exist. We can not therefore say that the atom has no charge in it, but that the net charge of the atom is none. Also, charge is only a word that we apply to the behaviours of ions.
Anyways, if we define nothing as the absence of anything then a perfect balance of something would not be nothing at all even if the effect seems to be of a third property.