I take it you don't know much about infinity. Mathematicians have done A LOT with infinity, since it's so complex and counterintuitive. Everyone can profit from a quick explanation about the modern theory of infinity, or at least of some of its findings:
* There are many sizes of infinity. There is a marked difference between the potential infinity of Arithmetic and Calculus, and the actual infinities dealt in Set Theory:
http://en.wikipedia.org/wiki/Cardinal_number http://en.wikipedia.org/wiki/Aleph_number
* Infinity plus one is Infinity. That fact I think dwells on the obvious. Aleph_a +1 = Aleph_a (Example: Aleph_null +1 = Aleph_null):
http://mathworld.wolfram.com/Aleph-0.html
Obviously INF/2 = INF and INF +1 = INF and INF + INF = INF
Of course, our mathematics don't necesarily apply to the greater expanse of God. We just don't know how a lot about the laws that govern Heaven, as to physical laws. Here on earth everything is temporal, changes, dies, corrupts, and justice is seldom served. Time as we know it may be different in Heaven, or not exist at all:
"And sware by him that liveth for ever ... that there should be time no longer"
Rev. 10:6
If we wouldn't exist forever, then we come to a point when we cease to exist, and my view therefore unable to be happy despite all our efforts and the efforts of God. That's why I would not accept the materialistic view that life ends at mortal death - because necesarily leave us in despair, and misery, without a purpose in life, or direction. There would be no reason to exist at all if we only existed temporally - that's my view.