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Writer's pictureJorge Guerra Pires

We do not need God for explaining the genomic complexity: the Complexity of Life and the Simplicity of Science




When we look at the incredible intricacies of the genome—the blueprint of life—it’s easy to feel a sense of wonder. Some interpret this awe as evidence of a designer, believing that the detailed structure of DNA must point to divine intent. Yet, there’s another, equally profound perspective: we don’t need God to explain the genome. In fact, adding a divine creator as an explanation complicates our understanding rather than simplifying it. Evolution provides a simple, evidence-based framework that accounts for all we see in the genome, without the need for an infinitely complex designer.

Here’s why the naturalistic approach is not only possible but preferable when interpreting life’s blueprint.

1. The Complexity Paradox: Adding God Adds More Questions Than Answers

Science favors simplicity—not in the sense of being “easy,” but in offering explanations that don’t require unnecessary assumptions. If we add God to explain the genome, we introduce a vastly complex being that itself requires explanation. A divine creator who designed the universe and life would have to be infinitely complex, capable of holding all knowledge and power.

To explain one complexity (the genome) by invoking an even greater complexity (God) leaves us with more unanswered questions. Who created God? How did this being come into existence? In attempting to answer why life is so intricate, we’ve only created more mysteries. This addition of a divine designer doesn’t help clarify our understanding—it amplifies the need for explanation.

2. The Beauty of Simplicity: How Evolution Explains Complexity Without Extra Assumptions

Science’s approach to understanding the genome is grounded in simplicity. Evolution, through natural selection, mutation, and genetic drift, explains how life builds complexity over time. Small genetic changes, passed down over generations, accumulate and adapt to the environment, producing the incredible biodiversity and intricate structures we see today. This process is observable, testable, and provides a clear, straightforward path from simplicity to complexity without invoking supernatural causes.

Unlike the assumption of an all-powerful designer, evolution’s explanations rely on mechanisms we can see, measure, and test. Mutations, for instance, are random; some help organisms survive, and these are favored by natural selection. This simplicity aligns with science’s goal of parsimony: finding explanations that are as simple as possible while still covering all the facts.

3. The Genome’s “Messiness” Makes Sense Through Evolution

The genome contains vast amounts of non-coding DNA—regions that don’t produce proteins and seem to have no specific function. If life were designed, we might expect it to be free of “junk” DNA and genetic flaws. However, evolution shows us that this messiness is actually to be expected. Over millions of years, genetic material accumulates mutations, duplications, and fragments of viral DNA. These “neutral” sections aren’t harmful and thus don’t get eliminated by natural selection; they remain as a kind of evolutionary record, showing the history of our genetic material.

This messiness also applies to genetic diseases, like cancer, which arises from random mutations in DNA. Such mutations, while occasionally beneficial, are often harmful, and their existence is an unavoidable part of the evolutionary process. In evolution, changes aren’t made for long-term health but for short-term survival and reproduction. An intentional designer would likely avoid such inefficiencies, but evolution operates without foresight—it allows organisms to survive “well enough,” not perfectly.

4. The Problem of Infinite Regress

When we use God to explain the complexity of life, we encounter a philosophical issue known as infinite regress. If a divine being is responsible for creating the intricate genome, then we must ask: Who or what created that divine being? This can spiral endlessly, as each creator would require another. Evolution offers a grounded explanation that doesn’t require a creator of creators. Its processes arise from natural conditions and proceed through cumulative, observable steps, giving us a clear picture that doesn’t rely on external agents.

Embracing the Natural Elegance of Evolution

The genome’s beauty and complexity are breathtaking, but they don’t require us to assume a designer. Evolution provides an elegant, sufficient explanation that aligns with the natural processes we observe. While some may find comfort in attributing life’s details to a higher power, the scientific approach allows us to understand life’s complexity through simplicity—a simplicity that marvels at nature’s ability to create, adapt, and thrive without direction.

In the end, the simplest explanation—that life’s complexity arose from natural, undirected processes—remains the most compelling. It’s a perspective that invites awe and curiosity without adding extra assumptions. The genome is a story of life building itself, one mutation at a time, through a process that is as profound as it is simple. And that, in itself, is enough to inspire wonder.



 

Independent Researcher and writer at Amazon.


About Jorge Guerra Pires


Jorge Guerra Pires has been writing and teaching biological systems modeling for beginners since his Ph.D. During his doctoral studies, he launched local courses at the University of L’Aquila, where he completed both his master's and Ph.D. Since then, he has maintained a YouTube channel, blogs, and other forms of knowledge dissemination and discussion, with a strong online focus.


Jorge Guerra Pires is passionate about biology, mathematics, programming, and anything that challenges his intellect. He holds a Ph.D. from the University of L’Aquila/Italy, recognized in Brazil by the University of São Paulo (USP) in bioinformatics. He has completed two post-doctorates, one at the Federal University of Bahia (UFBA) and the other at the Oswaldo Cruz Foundation (Fiocruz). Additionally, he earned a dual master's degree from the University of L’Aquila and the Technical University of Gdansk/Poland. His undergraduate degree is in Production Engineering from the Federal University of Ouro Preto.






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