“Is the universe infinite or finite?” – has it always existed, and always will, or did it have an origin in time? When you think about it, the possible answers to that question have a staggering array of implications. If, as pantheists and many atheists claim, the universe is infinite, there is no need for a Creator. On the other hand, if the universe is in fact finite, it necessitates a cause (and we shall explore this later). But how is anyone to know, really?
One philosophical argument against an infinite universe is that infinity does not exist in reality; it’s only a useful mathematical tool, a theoretical construct. Let me demonstrate using a splendid example: hair.
Let’s say I have an infinite amount of hair (’tis bigger than the biggest afro you’ve ever seen in your life, and extends beyond the very edge of the known universe). Let’s also say you’re balding, and you’d appreciate a share of my copious hair. Let us now imagine three possible situations (equally painful, I’m afraid):
1. I give you all my hair – in this situation, I have no more hair while you acquire the biggest mop in the world: Infinity – Infinity = Zero.
2. I give you every other hair – in this situation, alarmingly, we both have an inestimable supply of hair: Infinity – Infinity = Infinity.
3. I keep a couple of strands and give you the rest – in this situation, your abundant mane far outdoes my two lonesome threads: Infinity – Infinity = 2
So, here we have three conflicting situations where infinity is taken away from infinity to arrive at three mutually exclusive results. This mathematical and philosophical impossibility (ie. zero = infinity = 2) proves that infinity cannot exist in reality. Therefore, the universe (which exists in reality) has to be finite, and so does my hair – thank God for that! 😉