What is Cognitive Bias?
A cognitive bias is a predictable way that human judgment drifts away from what the evidence supports. It is not a lack of intelligence: it is a mental shortcut that usually saves time and sometimes misleads. Investors and traders meet them most when money, uncertainty and time pressure arrive together.
Why Cognitive Bias matters
Knowing which shortcut you lean on lets you build a rule or a check that catches it before it costs money.