Definition
Irreducible Complexity is an argument used by proponents of intelligent design, claiming that certain biological systems are too complex to have evolved from simpler predecessors through natural selection.
Why It Matters
This concept marks the boundary between scientific inquiry and theological assertion. Understanding its critiques is essential for maintaining a rigorous, evidence-based approach to biology and complex systems engineering.
Core Concepts
- Core Argument: A system is irreducibly complex if the removal of any one of its parts causes the system to effectively cease functioning.
- Classic Example: The bacterial flagellum or the blood-clotting cascade.
- Scientific Critique: Evolutionary biology demonstrates that parts can serve different functions in simpler precursors (exaptation), or systems can be redundant before simplifying.