A green leaf beetle on a leaf hoping to fool predators into thinking it’s not a bug

Confirmation Bias: How your brain wants to wreck your code

We suck at testing our own code. We suck so badly at it that it has led to entire professions like as Quality Assurance analysts and test engineers. We’re not necessarily bad at coding, but we’re notoriously bad at finding our own bugs.

Why is that? How do you take some of the smartest people out there and find some of the most glaring omissions and defects?