
For the mental models in your toolkit to be effective, they need to challenge one another, and they need to attack the world from as many different angles as possible. All individual models are partially wrong, but a good collection comes together to mitigate those wrongs.
By building a toolkit of mental models that account for your biases, you can have a checklist in place when making big choices to ensure that you aren’t leaving anything on the table. And by doing that, you significantly reduce the chance of judgment errors and losses.