This conference talk explores common misconceptions and thinking patterns that plague software development projects. Discover the famous fallacies of distributed computing that remain relevant since their origin in the 1990s, along with other cognitive biases affecting development teams. Learn about the Dunning-Kruger effect, green shifting, and "not invented here" syndrome that frequently impact software projects. Gain practical techniques to identify, avoid, and contain these problematic thinking patterns to improve your development process. Presented by Nathaniel Schutta, Technical Director at Thoughtworks, during JavaOne 2025 in California.