Is Intelligent Design a “God of the Gaps” Argument?

By Katie Hulse

What Is Intelligent Design?

As philosopher of science Stephen Meyer puts it, “The theory of intelligent design asserts that evidence of design is detectable in nature.”¹ In other words, features of the biological world and the physical universe exhibit characteristics of design. Examples include DNA with its information-bearing properties and the finely tuned physical laws and constants that make life in the universe possible. Proponents of intelligent design argue that such features are best explained as the result of an intelligent cause rather than strictly materialistic processes. The idea of design in nature has a long tradition throughout the history of science.²

An Argument from Ignorance?

Yet many people claim that intelligent design is a “God of the gaps” argument or an argument from ignorance. The idea is that when we don’t know how natural processes can account for certain facts of the universe, we then insert an intelligent cause like God into the picture to account for such gaps in our knowledge. 

Meyer offers a response to this challenge:

Clearly, the lack of an adequate materialistic cause does provide part of the grounds for inferring design from information or irreducibly complex structures in the cell. Nevertheless, this lack is only part of the basis for inferring design. Advocates of the theory of intelligent design also infer design because we know that intelligent agents can and do produce information-rich and irreducibly complex systems. In other words, we have positive experience-based knowledge of an alternative cause that is sufficient to have produced such effects. That cause is intelligence.

Thus, design theorists infer design not just because natural processes do not or cannot explain the origin of specified information or irreducible complexity in biological systems, but also because we know based upon our uniform experience that only intelligent agents produce these effects. In other words, biological systems manifest distinctive and positive hallmarks of intelligent design—ones that in any other realm of experience would trigger the recognition of an intelligent cause.³

Intelligent design is partially a negative argument, in that it argues that materialistic causes are not able to produce certain effects we see in nature. 

But much more than that, it is a positive argument based on what we do know. We know what causes are responsible for the effects we observe, and that cause is intelligence. For example, intelligent agents are able to produce complex and functionally specified sequences, or specified information, such as we find in DNA—just think of digital/alphabetic forms of information used in computers and books. Intelligent design is based on supporting evidence; it’s not an argument from ignorance. 

Inference to the Best Explanation

The theory of intelligent design is what’s called an inference to the best explanation. An inference to the best explanation “compare[s] the explanatory power of many competing hypotheses to determine which hypothesis would, if true, provide the best explanation for some set of relevant data based upon our knowledge of the causal powers of competing explanatory entities.”⁴ So, when considering multiple hypotheses, an inference to the best explanation will accept the hypotheses that best explain the relevant data. Such inferences are used in historical sciences, like geology, archaeology, and paleontology. 

Naturalism of the Gaps

Another thing to keep in mind when the “God of the gaps” charge is brought up against intelligent design is that there is “a tacit admission that an explanatory gap exists, that is, no materialistic alternative seems adequate to resolve the problem in question at the moment.”⁵ Critics of intelligent design will appeal to future naturalistic explanations to fill in such gaps in our knowledge—that is, they will assume a “naturalism of the gaps.” Apologist Greg Koukl sums up this idea:

When materialistic scientists claim there must be a natural explanation we haven’t discovered yet, they are not only begging the question on the truth of naturalism (circular reasoning), they are also guilty themselves of a gaps fallacy—a naturalism of the gaps, claiming that some future discovery of science will solve the problem. The only evidence they have that science will fill any particular gap is that science has been successful in the past. They could be right, but notice they are filling the alleged gap with their own faith in the future success of materialism, while ID researchers are filling the ‘gap’ with a design explanation that’s based on positive evidence, not a leap of faith.⁶

Closing Thoughts

So, when exploring the scientific data, what should we conclude? Koukl offers a helpful perspective:

When the evidence strongly suggests a materialistic explanation, go with that. If a materialistic explanation seems inadequate to the phenomena and positive evidence suggests intelligent design, go with that. Dismissing justified ID alternatives as a “God of the gaps” fallacy will not make the evidence for design go away. Rather intellectual honesty requires one always follow the evidence where it leads, regardless of how philosophically distasteful the conclusions may be.⁷

Notes

1. Stephen C. Meyer, “What Is the Evidence for Intelligent Design and What Are Its Theistic Implications?” Science & Culture Today, March 23, 2022, https://scienceandculture.com/2022/03/what-is-the-evidence-for-intelligent-design-and-what-are-its-theistic-implications/.
   
2. For more, see Stephen C. Meyer, “A Scientific History and Philosophical Defense of the Theory of Intelligent Design,” From Religion – Staat – Gesellschaft: Journal for the Study of Beliefs and Worldviews, vol. 7 (2008), https://www.discovery.org/a/7471/.
   
3. Meyer, “A Scientific History and Philosophical Defense.”
   
4. Stephen C. Meyer, “Evidence of Intelligent Design in the Origin of Life,” in The Mystery of Life’s Origin, April 3, 2026, https://stephencmeyer.org/2020/04/03/evidence-of-intelligent-design-in-the-origin-of-life-2/.
   
5. Greg Koukl, “God of the Gaps?” Stand to Reason, June 10, 2014, https://www.str.org/w/god-of-the-gaps-.
   
6. Koukl, “God of the Gaps?”
   
7. Koukl, “God of the Gaps?”

Recommended Resource

Stephen Meyer, Return of the God Hypothesis: Three Scientific Discoveries that Reveal the Mind Behind the Universe (HarperOne, 2021).