(October 28, 2015 at 1:23 am)Nestor Wrote: A popular claim made in conjunction with the Kalam argument for God's existence is something like the following: past time cannot terminate in an infinite regress because it would take an infinite amount of time to arrive at the present moment, and one cannot reach the end - which would be the present - of an actual infinity.
You can argue that if you cannot have an infinite regression then you also cannot have an infinite progression. Infinity is infinity. If you divide it you get infinity. If you subtract a number you still get infinity.
Saying that you can have infinity in one direction only is like saying that you can travel around a circle for infinite time even if you cut half that circle away.
So I turn the argument around and tell the person that they are effectively arguing that God, Heaven and eternal life cannot exist.
Ultimately though I think infinities are just a concept that we use to reason about the world. Actual infinities are impossible to measure.