Proof Number 3: The Teleological (Fine Tuning) Argument
1. The fine-tuning of the universe is due to either physical necessity, chance, or design.
2. It is not due to physical necessity or chance.
3. Therefore, it is due to design.
Defense of Premise 1: This really comes into 2 parts, proving that fine tuning of the universe exists, and laying down the options.
It is widely known among cosmologists that there are certain constants of our universe, where if one were altered just a little bit, absurd things would happen, such as the inability for atoms to form, the universe may have expanded too fast, or expanded too slowly.
There is a whole variety of constants that we can adhere to observe fine tuning, one of them being the Cosmological Constant.
The Cosmological Constant, it is known, must be fine tuned to 1 part in 101^(20)
There are many other constants with their own probabilities.
Roger Penrose the physicist states: “I cannot even recall seeing anything else in physics whose accuracy is known to approach, even remotely, a figure like one part in 10^10^(123).”[1]
That is a:
probability, such numbers are insane, and speak magnitudes for the fine tuning for life.
There are only 3 possibilities for such fine tuning. Due to chance at the initial big bang. Due to physical necessity, or design.
Defense of Premise 2:
This is the controversial premise of course.
To deal with physical necessity is simple, what it means is that these constants and quantities MUST be that way, i.e. they necessarily exist that way. But there is no evidence in physics to suggest this to be the case, we can most definitely postulate universes in which this not be the case.
Of course then we are left with chance. However the odds are so astonishingly low that no person in their right mind would try to say that it happened by chance, just by itself. We never apply this logic to our daily lives, why should we apply it here?
No right minded person will simply say that it arose by chance, without postulating the multiverse theory.
There are multiple problems with the multiverse theory however.
1. There is no empirical evidence to suggest the existence of multiverses
2. This violates Occam's Razor.
3. There are problems with the level 2 Multiverse theory, which states that there are a near infinite number of universes, each with their own starting conditions, so that in the end, a universe like ours is inevitable.
3*. The Christian philosopher Alvin Plantinga has proposed quite an ingenious problem philosophically for this universe.
It is the Boltzmann Brains problem:
A Boltzmann Brain is a hypothesized self awareness
As William Lane Craig puts it:
"Here’s where the Boltzmann Brains come into the picture. In order to be observable the patch of order needn’t be even as large as the solar system.
The most probable observable world would be one in which a single brain fluctuates into existence out of the quantum vacuum and observes its otherwise empty world. The idea isn’t that the brain is the whole universe, but just a patch of order in the midst of disorder. Don’t worry that the brain couldn’t persist long: it just has to exist long enough to have an observation, and the improbability of the quantum fluctuations necessary for it to exist that long will be trivial in comparison to the improbability of fine tuning."
The italicized point is important.
According to the multi-verse hypotheses, if universes come into being randomly, and an infinitely many universes would have this be the case. It is vastly more probable that a universe containing a single Boltzmann brain would fluctuate into existence. But we aren't Boltzmann brains! Therefore we can only conclude that the multiverse hypothesis is invalid in trying to explain away the fine tuning of our universe.
Thus we cannot even explain it by chance.
Here is a good analogy:
"Imagine you are playing some sort of high stakes gambling game. You draw out 4 aces in one go. The people playing with you get up and ask what in the world is going on, because they clearly think that something is suspicious. But you say 'well we just happen to be in one of the universes in the world ensemble in which I draw 4 aces, its inevitable that I draw all 4 aces!"
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In the end, this argument appeals most to the intuition of other people, it is clear that design is prevalent in our universe, it is clear that we are designed.
If you want to specify aliens, then clearly these aliens were designed, if they were given such intelligence to be able to design, and we would follow an infinite regress eventually to the greatest Designer. There is no escaping this fact.
[1]: Roger Penrose, “Time-Asymmetry and Quantum Gravity,” in Quantum Gravity 2 (ed. C. J. Isham, R. Penrose, and D. W. Sciama; Oxford: Clarendon, 1981), 249.