The famous fallacies of distributed computing are as true today as when they were originally penned in the Paleozoic era of computing known as “the 90s”, but those aren’t the only misconception found in software. There are many biases and delusions common to projects from the Dunning-Kruger effect to green shifting to not invented here. This talk will explore the most common “thinking patterns” prevalent to software development as well as techniques to avoid and contain them.