There’s an interesting article posted at Universe Today by Dr. Paul M. Sutter. Although he does accept unguided evolution after the origin of life, he doesn’t think that naturalism can account for the origin of life. On this blog, I’ve talked about three problem’s with life’s origin: 1) getting the right building blocks, 2) getting the right information, and 3) irreducible complexity. Let’s take a look.
Here is a link to the article from Universe Today.
Here is a quick bio of the author:
Paul M. Sutter is a theoretical cosmologist, award-winning science communicator, NASA advisor, U.S. Cultural Ambassador, and a globally recognized leader in the intersection of art and science. Paul is a research professor at the Institute for Advanced Computational Science at Stony Brook University and a visiting professor at Barnard College, Columbia University.
[…]Paul earned his PhD in physics in 2011 as a Department of Energy Computational Science Graduate Fellow at the University of Illinois. He then spent three years as a research fellow at the Paris Institute for Astrophysics followed by two years at the Trieste Observatory in Italy. Prior to his current appointment, he held a joint position as the chief scientist at the Center of Science and Industry in Columbus, Ohio and as a cosmological researcher at the Ohio State University.
Now let’s turn to his article.
It’s always good to remind people what is required for the simplest kind of life, and he does that:
To succeed at evolution and separate itself from mere chemical reactions, life must do three things. First, it must somehow store information, such as the encoding for various processes, traits, and characteristics. This way the successful traits can pass from one generation to another.
Second, life must self-replicate. It must be able to make reasonably accurate copies of its own molecular structure, so that the information contained within itself has the chance to become a new generation, changed and altered based on its survivability.
Lastly, life must catalyze reactions. It must affect its own environment, whether for movement, or to acquire or store energy, or grow new structures, or all the many wonderful activities that life does on a daily basis.
I remember listening to lectures about the origin of life by Dean Kenyon, Charles Thaxton, and Walter Bradley in my younger years. If I remember correctly, the minimal functions of a living system are capture energy, store information, and replicate. Sutter does a nice job of describing an even longer list.
So what’s the problem with appealing to chance and necessity to create all that? Well, in order to do all that, we need to have three components in place: DNA, RNA and molecular machines.
He writes:
Put exceedingly simply (for I would hate for you to mistake me for a biologist), life accomplishes these tasks with a triad of molecular tools.
One is the DNA, which through its genetic code stores information using combinations of just four molecules: adenine, guanine, cytosine, and thymine. The raw ability of DNA to store massive amounts of information is nothing short of a miracle; our own digital system of 1’s and 0’s (invented because it’s much simpler to tell if a circuit is on or off than some stage in-between) is the closest comparison we can make to DNA’s information density. Natural languages don’t even earn a place on the chart.
The second component is RNA, which is intriguingly similar to DNA but with two subtle, but significant, differences: RNA swaps out thymine for uracil in its codebase, and contains the sugar ribose, which is one oxygen atom short of the deoxyribose of DNA. RNA also stores information but, again speaking only in generalities, has the main job of reading the chemical instructions stored in the DNA and using that to manufacture the last member of the triad, proteins.
“Proteins” is a generic catch-all term for the almost uncountable varieties of molecular machines that do stuff: they snip apart molecules, bind them back together, manufacture new ones, hold structures together, become structures themselves, move important molecules from one place to another, transform energy from one form to another, and so on.
Proteins have one additional function: they perform the job of unraveling DNA and making copies of it. Thus the triad completes all the functions of life: DNA stores information, RNA uses that information to manufacture proteins, and the proteins interact with the environment and perform the self-replication of DNA.
What’s the problem? The problem is that this all has to come together at the start, in order to have life. You can’t build up gradually, from one component, to two components, to three components. All three are needed at the start. This is what Michael Behe calls irreducible complexity, but others have described it as minimal complexity.
Sutter says:
The interconnected nature of DNA, RNA, and proteins means that it could not have sprung up ab initio from the primordial ooze, because if only one component is missing then the whole system falls apart – a three-legged table with one missing cannot stand.
And just to be clear, he would have to provide some evidence of “primordial ooze”. As I’ve blogged about before, life appears almost instantaneously after the cooling of the Earth. He might like to appeal to “billions of years” to get that first replicator, but he doesn’t have billions of years. Molecular oxygen, which is poisonous to origin of life chemistry, was present right after the Earth cooled. And that’s not my opinion – that’s right out of the prestigious peer-reviewed journal Nature.
Evolution News notes:
A recent Nature publication reports a new technique for measuring the oxygen levels in Earth’s atmosphere some 4.4 billion years ago. The authors found that by studying cerium oxidation states in zircon, a compound formed from volcanic magma, they could ascertain the oxidation levels in the early earth. Their findings suggest that the early Earth’s oxygen levels were very close to current levels.
[…]Their findings not only showed that oxygen was present in the early Earth atmosphere, something that has been shown in other studies, but that oxygen was present as early as 4.4 billion years ago. This takes the window of time available for life to have begun, by an origin-of-life scenario like the RNA-first world, and reduces it to an incredibly short amount of time. Several factors need to coincide in order for nucleotides or amino acids to form from purely naturalistic circumstances (chance and chemistry). The specific conditions required already made purely naturalist origin-of-life scenarios highly unlikely. Drastically reducing the amount of time available, adding that to the other conditions needing to be fulfilled, makes the RNA world hypothesis or a Miller-Urey-like synthesis of amino acids simply impossible.
I understand that naturalists want to believe that nature is self-contained, and can do it’s own creating. That belief is practically required in order to have careers in academia. Scientists have to at least claim that “naturalism can do it” or they would draw the unwanted attention of the Darwin mob – the people who got people like William Dembski, Guillermo Gonzalez, Richard Sternberg, etc. fired. However, the scientific evidence doesn’t support naturalism. I wish more people would form their views based on scientific evidence, rather than on the religion of naturalism.
