This document contains Simon Willison's heresies about Django. Some of the heresies discussed include that the {% if %} tags in Django templates suck, that silencing template errors is a bad idea, and that settings.py causes problems. Alternatives proposed include using a smarter {% if %} tag snippet, not silencing errors, and allowing per-application settings instead of one global settings file. The document also advocates for improving testing and documentation in the Django community.