Definition
Irrationality is the gap between how people think they reason and how they actually do. Most believe their conclusions follow from evidence and logic. In practice, emotions, desires, and biases shape the conclusion first, and reasoning is recruited afterward to justify it.
This is not a defect of a few people but a default condition of the mind. Feeling moves faster than thought, and unexamined emotion quietly steers perception, memory, and judgment.
Why it matters
How it works
The mind reaches conclusions through low effort emotional shortcuts and then constructs a logical-sounding story to support them. Confirmation bias keeps reinforcing evidence, convenient framing magnifies what suits a desire, and the resulting belief feels objective from the inside.
Becoming more rational does not mean eliminating emotion, which is impossible. It means recognizing emotion's influence and creating space between feeling and judgment. The practical steps are consistent: treat strong reactions as signals to slow down, examine where a conviction came from, seek out disconfirming evidence, and let important decisions cool before acting. Rationality, in this view, is a skill cultivated over a lifetime rather than a trait possessed by default.