Self-Serving Rationality

The performance of being coldly, dispassionately rational in situations where that rationality conveniently aligns with your desires, while abandoning that rigor in situations where it doesn't. You'll do a complex cost-benefit analysis to prove why you should buy the new gadget, but will use a gut feeling to dismiss the same analysis when it suggests you should apologize to a friend you wronged.

Example: "Her self-serving rationality was transparent: she spent three hours comparing CPU benchmarks to justify the expensive laptop she wanted for gaming ('It's the rational choice for long-term value!'). Yet, when her partner suggested comparing grocery prices to save money, it was suddenly 'an exhausting over-optimization of life.' Rationality was her servant, not her master."

Self-Serving Rationality by AbzuInExile January 31, 2026