── ── Cognitive bias
Self-Renewal
Self-renewal is the structured practice of identifying which mental models have passed their expiry date and genuinely updating — not merely annotating — them. It is not the same as learning new things: you can learn while remaining anchored to an obsolete core belief. The skill requires not addition but negation — actively denying what you previously held most confidently.…
How it works
Step 1 — Belief Inventory: List 5 most confidently-held beliefs — the ones you'd stake your reputation on. Gate: Fewer than 5 means you're listing conscious, not operating beliefs. Ask: "What assumptions underlie decisions I make without thinking?" Step 2 — Expiry Check: For each: (a) last strong evidence for? (b) last genuine engagement with strong evidence against? (c) specific falsification condition? Gate: Can't name a falsification condition = axiom, not belief — identify it explicitly.
Step 3 — Obstacle Diagnosis: Identify which of the 10 obstacles apply: outdated knowledge · outdated mindset · excess arrogance · rigidity · attachment to past success · blaming others · lack of self-criticism · unrealistic ambition · seeking grand achievements · disconnected from reality. Gate: At least 2 genuinely active obstacles.
Step 4 — Active Denial Experiment: Identify 3 credible sources contradicting your most confident belief — sources you'd previously have been reluctant to take seriously. Schedule 30 days. Gate: If they nuance rather than challenge, find harder disconfirmation. Step 5 — Update Assessment: Articulate how the belief has or has not changed. If unchanged and you can't counter each source specifically, resistance is ego-based — return to Step 4. Step 6 — Integration: Document updated belief and new falsification conditions. Identify behavior changes that follow. Stop-rule: All 5 beliefs passing unchanged means Step 4 was not executed correctly. Find stronger sources and repeat.
When to use it
- someone says "I keep reverting to old habits," "our strategy worked five years ago but not now," "I know I should think differently but can't seem to," "how do I stay relevant," or a leader/team is operating on prior-era assumptions in a changed environment
When not to use it
the underlying belief is still valid and the environment hasn't changed (renewal for its own sake produces instability), or someone is in acute crisis and needs stability rather than dismantling.
Worked example
Charles Darwin's Systematic Self-Renewal (1831–1836)
Darwin departed on HMS Beagle in December 1831 as a conventional theological naturalist trained at Cambridge. His prior framework: species were fixed, created separately, and arranged in a hierarchy with humans uniquely above nature. These were not idle assumptions — they were his professional consensus beliefs, shared by his mentors (John Stevens Henslow, Adam Sedgwick).
Install this skill (free, MIT)
npx skills add deciqAI/knowledge-skills