A "cognitive bias" is a systematic error in thinking that ruins decision-making.
The 12 most powerful cognitive biases I've found:
1. Parkinson's Law:
Work expands to fill the time given.
When we have more time, we tend to procrastinate and become inefficient.
A good reminder to track your tasks duration and energy level.
2. Goodhart's Law:
When a measure becomes a goal, it stops being a good measure.
I.g: Exams and standard admission shifted the focus of education.
It's no longer about the students, but about grades and pay.
3. P.S. If you want my collection of the best, most useful mental models, cognitive biases, and cognitive tendencies, grab a free copy of my product here: