Biases vs testers

Surely you don’t think that for all the millions of years of human evolution, our nature has been striving for us to sit in a comfortable chair and test releases (or write autotests)? Most of the time, our brains created a complex system of rules and optimizations to keep us from going crazy. Do you think it's good for us? Of course, we didn't go crazy! But like any optimization, tuning for a "happy path" does not always lead to the right results. We'll see how cognitive distortions let you make mistakes, incorrect conclusions and assumptions. But how to deal with them is up to you!