In this blog post, I will examine the concept of design inference and specified complexity as proposed by Intelligent Design—focusing on William Dembski’s “Intelligent Design”—and consider whether Intelligent Design can be included within the realm of science based on the Archaic Bird textbook controversy that occurred in South Korea in the past and today’s scientific standards.
Why Did the Archaeopteryx Controversy Lead to the Issue of Intelligent Design?
Humans, often called the “crown of creation,” are curious creatures. Throughout history, humanity has constantly asked “why?” about the Earth we inhabit and the history of life. In the process, the debate between creationism and evolution regarding the origin of life has persisted. However, in modern science, biological evolution is accepted as a core theory of modern biology, developed on the basis of evidence from various fossil records, genetics, molecular biology, and comparative anatomy. In contrast, creationism—which presupposes supernatural creation—is treated from a religious and theological perspective and is therefore not regarded as a scientific theory on par with the theory of evolution in modern science. The “Archaeopteryx controversy” that took place in South Korea in the past was also related to this issue. At the time, the Association for the Revision of Evolutionary Theory in Textbooks, which supported a creationist perspective, filed a petition requesting that relevant content in high school science textbooks be revised or deleted on the grounds that “Archaeopteryx is not an intermediate species between reptiles and birds.” The controversy escalated when some textbook publishers indicated they would accept this request. Subsequently, the government ordered a re-examination of the opinions of experts in the scientific community, and the matter was resolved in favor of retaining examples demonstrating evolution—such as Archaeopteryx—in textbooks. While detailed discussions regarding the exact phylogenetic position of Archaeopteryx continue in paleontology today, the fact that it is a fossil of great importance for understanding the evolution of theropod dinosaurs closely related to birds and the origin of early birds remains undisputed. Although the position of Archaeopteryx has been adjusted based on new fossils and phylogenetic analyses, subsequent studies have again placed it within the early avian clade, the Ornithoptera, and recent research also treats Archaeopteryx as one of the key fossils for understanding avian evolution and the origin of flight.
While following these debates, I read William Dembski’s ‘Intelligent Design’ as part of a course on science and technology writing. As a staunch atheist, when I first encountered the Archaeopteryx controversy, I dismissed it as nothing more than the claims of religious people based on faith. The idea that a being like a Creator planned and created everything in this world was not something I, as an atheist, could easily relate to. However, after reading ‘Intelligent Design’, I found myself reconsidering the fundamental question of where the world I live in actually came from. If, during my secondary education when I was first learning science, I had been taught the perspectives of creationism or intelligent design rather than Darwin’s theory of evolution, how would I have felt when I first encountered the theory of evolution later on? Of course, I cannot fully agree with every argument presented in this book. That said, I did not want to dismiss the philosophical questions raised by the book as entirely meaningless. I believe that what matters most—before deciding which claim to believe—is examining the evidence on which that claim is based and determining to what extent it can be verified within the framework of science. From this perspective, I would like to reexamine ‘Intelligent Design’ by focusing on the author’s central ideas and arguments.
Can specified complexity serve as evidence of design?
In the first part of the book, the author discusses targets and design inference. Simply put, intelligent design argues that when a result is sufficiently complex and simultaneously exhibits a specific pattern, we can infer that it did not arise by mere chance but was likely caused by an intelligent agent. In the author’s view, this judgment is a more formal and systematic formulation of the kind of inference humans constantly make in everyday life. When we observe a phenomenon, we often judge whether it arose by chance or was created through someone’s intention and plan. Intelligent design seeks to systematize this judgment through a method known as “inference to design.” The author then mentions British natural theology, which is deeply connected to the concept of design. British natural theology was an intellectual tradition that, for centuries prior to Darwin, sought to understand divine activity or purpose through the observation of nature. However, with the advancement of modern science in the 19th century and the establishment of a methodology that sought to explain natural phenomena through natural processes rather than supernatural causes, natural theology was gradually pushed out of the central explanatory framework of the natural sciences. The author views this historical shift not as a result of the concept of design itself having been sufficiently refuted, but rather as a consequence of changing scientific methodology that excluded design from the realm of scientific explanation; consequently, he seeks to bring the concept of design back into scientific discourse.
The two characteristics the author identifies as crucial for detecting design are complexity and specified complexity. Complexity refers to the fact that an object is so complex that it is difficult to view it as having arisen simply by chance, while specified complexity means that the object corresponds to a specific pattern that can be explained independently. Demske links the combination of these two characteristics to “specified complexity” and argues that through this, traces of an intelligent cause can be empirically detected. His logic is that specified complexity is not merely a matter of metaphysics or theology, but rather a matter of analysis dealing with probability, information, and complexity, and that through this, statistical legitimacy can be granted to the inference of design. Furthermore, he believes that rather than hindering naturalistic scientific research, intelligent design can raise new research questions regarding issues that are deemed insufficiently explained by existing evolutionary theories alone. Therefore, the author argues that reintroducing design into scientific discourse can actually broaden the scope of scientific research. However, whether this “specified complexity” can actually serve as an independently verifiable scientific method, and whether natural processes and intelligent causes can be clearly distinguished through experimentation or observation, are separate issues. Today, major scientific institutions do not recognize intelligent design as a scientific theory on the grounds that it fails to provide sufficient empirically testable independent explanations and verifiable predictions.
How far does the scope of science extend?
The topic of the debate at the time was, “Should intelligent design be excluded from the scope of science?” What felt most unclear during the debate was that those arguing for and against the issue had fundamentally different understandings of the concept of “science” to begin with. Those arguing that intelligent design should not be completely excluded from the realm of science tended to interpret the definition of science relatively broadly, whereas those arguing for its exclusion centered their arguments on empirical science—that is, science based on observation and verification. So, what is science as we generally understand it? If you ask the average person what science is, they are likely to answer that it is the discipline of uncovering the principles of natural phenomena through experimentation and observation. Indeed, modern science consists of core activities such as systematic observation and experimentation, inductive and deductive reasoning, model-building, and the formulation and verification of hypotheses and theories. However, it is difficult to assume that there is a single, absolute “scientific method” that applies uniformly to all sciences. Although research methods vary by academic discipline, it is accepted as a key principle in modern science that research must be based on empirical evidence, be open to verification and criticism, and be capable of revising existing explanations in light of new evidence. Furthermore, a scientific theory is not accepted as an established truth simply because it has never been falsified; rather, it is accepted as the theory that best explains the currently available evidence while withstanding repeated verification and criticism. Formal sciences, such as mathematics and formal logic, which develop primarily through axioms and logical reasoning rather than empirical observation, are methodologically distinct from the natural sciences. Similarly, while philosophy and theology address important questions about humanity and the world, they are generally not classified as disciplines that employ the same methods as the empirical natural sciences. This does not mean, however, that all claims made by philosophy or theology are worthless or false. Rather, it means that each discipline asks different questions and justifies knowledge in different ways.
Viewed from this perspective, there are clear limitations to attempts to explain theological premises in the form of empirical science. For a claim that a supernatural intelligent being intervened in a natural phenomenon to be accepted as a scientific explanation, there must not only be observable evidence to support it, but also verifiable criteria to determine whether the claim is false when certain outcomes occur. The reason major scientific institutions today do not recognize intelligent design as a scientific theory is not simply because it contains religious content. Key reasons cited include the difficulty of proposing empirical methods to independently verify or falsify the existence of an intelligent cause, and the failure to provide sufficient predictions that can be repeatedly tested against natural phenomena. Nevertheless, as I reflected on this issue, I was also reminded that science itself has clear limitations. Since science understands reality based on observation, measurement, experimentation, and inference, it primarily deals with problems that can, in principle, be approached through evidence. While scientific understanding continually becomes more sophisticated as new observational technologies and research methods emerge, this does not mean that current science can fully explain every aspect of nature and the universe. Even a theory that seemed very certain in one era can be revised or replaced by a more comprehensive theory based on new evidence. While science has achieved remarkable success in accumulating vast knowledge about nature and explaining various phenomena through consistent causal relationships and laws, the fact that there are still unexplained problems is also a key characteristic of science. However, we must distinguish between the fact that there are problems science has not yet explained and the claim that the answer to those problems is intellectual design.
What is the significance of the questions raised by intelligent design?
In my view, at the root of this issue lies the question: “How should we perceive the world?” In the process of answering the question of how to understand the world around us, humanity has developed the powerful body of knowledge known as the natural sciences. Through the tool of science, humanity has uncovered the causes of countless phenomena that were previously unknown. Events that were once difficult to understand have become explainable through observation and evidence. For example, in some societies of the past, astronomical phenomena such as solar eclipses were interpreted as omens foretelling national disasters or ominous events. Today, however, we know that a solar eclipse is an astronomical phenomenon that occurs when the Moon blocks the Sun due to the relative positions of the Sun, the Moon, and the Earth. In this way, science has expanded the scope of the world that humans can understand by explaining, one by one, phenomena once thought to be incomprehensible through natural principles and laws. My own approach to science is similar. Science is a method of gradually understanding the world, including myself; it is a process of discovering laws previously unknown and, based on those laws, understanding other principles. Intelligent design, on the other hand, examines complex phenomena that we feel we have not yet fully explained and asks whether such complexity could truly have arisen through natural processes alone. Intelligent design is, in essence, a line of reasoning that questions phenomena deemed difficult to explain solely by chance or natural processes and seeks to account for their causes. However, the fact that something remains unexplained by science does not automatically constitute evidence for the existence of a supernatural or intelligent cause. This is because the history of science is also a history in which countless phenomena that were once incomprehensible have come to be explained by natural processes through new observations and theories. Nor does this mean that every question humans can pose about the world must be exclusively scientific. Questions such as the ultimate meaning or purpose of nature and the universe, or the reason for existence, have long been addressed not only by science but also by philosophy and theology. If we understand intelligent design as one such philosophical or theological question, it can offer another perspective from which to view the world. However, to propose it as a theory within the natural sciences, it must present verifiable evidence and methods, just like any other scientific theory.
I do not believe that “intelligent design” presents sufficient evidence to convince everyone. In some parts of the book, I felt that the boundary between religious premises and scientific arguments was unclear, which actually weakened the author’s case. In particular, the process of directly inferring the existence of an intelligent designer from the fact that a natural phenomenon is complex requires more rigorous verification. Nevertheless, reading this book was not a meaningless experience. On the contrary, through the debate surrounding intelligent design, I was led to reconsider what science is and how to distinguish between issues that can be explained by science and those that are difficult to judge by science alone. Modern civilization is built on the foundation of scientific and technological advancements, and these developments have profoundly transformed human life. However, the ways in which humans understand the world are not limited to science; they also include various intellectual traditions such as philosophy, religion, and ethics. Although theology and science cannot be viewed as identical systems of knowledge, it is meaningful to discuss the nature of their relationship regarding questions about the essence of humanity and the world. It is also necessary to distinguish between the question of whether intelligent design can be accepted as a scientific theory and the question of whether the philosophical questions raised by intelligent design are meaningful. Ultimately, the most important insight I gained from reading ‘Intelligent Design’ was not to simply accept a specific claim at face value, but to recognize the need to reexamine the worldview and understanding of science that I had long taken for granted. I believe that, while acknowledging the achievements of science, it remains a crucial task for those seeking to understand the world to consider how science constructs knowledge and the limits of its explanatory power, while simultaneously distinguishing the nature of the questions raised beyond those boundaries.
