4 reviewed lenses · 3 contexts
Evidence evaluation
Judge whether a claim deserves confidence before repetition, fluency or preference turns into evidence.
Outcome: You can separate a persuasive claim from the evidence that should change your mind.

Decision Skills
Bias names are useful vocabulary. Skills are what help when a real decision arrives. These guides connect reviewed cognitive-bias lenses with practical questions, actions, contexts and exercises.
Skill library
4 reviewed lenses · 3 contexts
Judge whether a claim deserves confidence before repetition, fluency or preference turns into evidence.
Outcome: You can separate a persuasive claim from the evidence that should change your mind.
4 reviewed lenses · 3 contexts
Make useful choices when outcomes are not known and one number, story or recent event can pull judgment too strongly.
Outcome: You can make a decision without pretending uncertainty has disappeared.
4 reviewed lenses · 2 contexts
Estimate what may happen next by using comparable evidence, explicit uncertainty and records made before the outcome is known.
Outcome: You can produce forecasts that are easier to challenge, compare and learn from later.
4 reviewed lenses · 3 contexts
Inspect how a judgment was formed, what influenced it and what would make you change it.
Outcome: You can review your reasoning process without confusing confidence, outcome and hindsight with decision quality.
4 reviewed lenses · 2 contexts
Check where information came from, whether sources are independent and whether a correction has really replaced the old explanation.
Outcome: You can verify important claims without treating repetition as independent confirmation.
6 reviewed lenses · 3 contexts
Use AI as a decision aid without confusing fluent output, humanlike presentation or repeated generated claims with verified capability and evidence.
Outcome: You can use an AI system to expand reasoning while keeping important judgments independently checkable.
How to use this
Choose a skill, open a decision context, try the practice set, then inspect the evidence behind the lenses that mattered. The goal is not to diagnose yourself or someone else. It is to improve the next reasoning move.