Argument from the second law of thermodynamics
Creationists often claim that the Second Law of Thermodynamics (sometimes abbreviated 2LoT) precludes evolution (and/or the Big Bang). Often this is explained by saying that the second law says that everything tends toward disorder; since living beings (or the universe) is highly ordered, they could not have formed spontaneously.
From Thermodynamics vs. Evolutionism at trueorigin.org:
- "The second law presents an insurmountable problem to the concept of a natural, mechanistic process: (1) by which the physical universe could have formed spontaneously from nothing, and (2) by which biological life could have arisen and diversified (also spontaneously) from a non-living, inanimate world. (Both postulates form essential planks in the platform of evolutionary theory in general.)"
A.C. McIntosh, Information And Entropy – Top-down Or Bottom-up Development In Living Systems?, International Journal of Design & Nature and Ecodynamics, Vol. 4, Issue 4:
- "Consequently, the fundamental laws of thermodynamics show that entropy reduction which can occur naturally in non-isolated systems is not a sufficient argument to explain the origin of either biological machinery or genetic information that is inextricably intertwined with it."
Entropy is not the same as disorder
The second law of thermodynamics does not say that everything tends toward disorder, but rather that entropy increases. While there are similarities between the scientific notion of entropy and the intuitive notion of disorder, there are differences as well. Thus, this argument represents a form of equivocation on the meaning of the word "disorder".
Argument From the 2nd Law of Thermodynamics against God's existence
1. The Big Bang has entropy S.
2. A hypothetical god is either orderly or chaotic.
a. Hypothetical gods have a personhood.
b. Personhood implies orderliness.
c. A hypothetical god is orderly, and thus has low entropy. (See note1 for more detail.)
3. In order for god to directly cause the Big Bang, he must have a lower entropy (S-a, where a is positive, real number).
4. The probability of the Big Bang coming from a higher state of entropy (S+b, where b is a positive, real number) approaches P=1, normalizing over the condition of many opportunities for the Big Bang to happen.
5. The probability of the Big Bang coming from an even lower state of entropy (god) approaches Q=0 (since Q=1-P).
6. The difference in probability is thus the limit of 1 divided by the limit of 0, which of course approaches infinity.
7. There is an infinitely greater chance that the Big Bang is the result of randomness than the result of even more order.
8. Thus, god does not exist.
But God is not within the block universe, so how can you account for his entropy?
Whether or not god exists within the block universe does not affect the necessity of his entropy. If god is in an ordered state, then he has low entropy. If god is not in an ordered state, and thus in a disordered state—he has high entropy.