There has been one argument that resonated with my rational mind for the existence of God. And that is the argument of life permitting cosmic conditions (LPCC). In our universe and on our planet, we have a set of relative forces, including things such as gravity and the speed of light, which have allowed for the existence of life. We do not need to prove this as we can look around and observe life, we have conscious thought, that is proof enough. And if we consider the range of small alterations which could be made to this set of cosmic conditions in, we might get something like the picture below.

So what we see is that the range of cosmic conditions which would allow for the existence of life is quite small in comparison to the full range of cosmic conditions. You could even say that the range for LPCC is countably infinite (like the range of integers from 0 to infinity; there's an infinite amount of them, but you can count them) whereas the range for cosmic conditions is uncountably infinite (like the numbers between 0 and 1; there's an infinite amount of them and you cannot count them).

What we can take from this is that, given this comparison, it is extremely unlikely given a single universe that we just happened to be given LPCC. If only a single world exists, then we might compare the probability to dealing a single hand of cards and getting a royal flush (a 1 in 650,000 chance, and that's dealing with finite probabilities). But what if ours is just one of many universes? What if we're actually dealing with a multiverse? Well, then our set of LPCC probably isn't that special. If you deal 650,000 hands of cards, you aren't going to be too surprised when one of them comes out a royal flush. And if an uncountably infinite number of universes exist, then it's not that remarkable that a countably infinite number of them have LPCC.

So how do you prove the existence of the multiverse? Well, that gets into some pretty heavy quantum mechanics. But the basic idea is that a lot of the proven experiments dealing in quantum mechanics require the existence of a multiverse. There's this thing called quantum decoherence which is what gives the appearance of wave function collapse. You might have heard this described in the metaphor of Schrodinger's Cat, the thought experiment that puts a poor feline in a sealed box with some radioactive material, a Geiger counter, and a vial of poison. Since we cannot see the kitty, he's both alive and dead at the same time. Quantum systems have a similar thing going: they exist in all possible states simultaneously and we observe the most probable state.

Basically, the particle exists in all states as described by a Gaussian curve like the one above. The wavefunction that describes the particle is a superpostion of different eigenstates. The Gaussian curve describes the probability of any given set of eigenstates and so our observation in our universe returns the most probable state of the particle.

Thus our universe with its LPCC is nothing remarkable, it is simply the most likely outcome. No creator is required.

Today, I got on an elevator with two complete strangers, both women. One of them looked at me and said "You are so beautiful" then laughed when I looked at her completely stunned and said "Sorry for making the elevator ride awkward." We both laughed. And it made my day.