Dynamically typed programming languages such as Perl, Python and Ruby have been gradually gaining popularity and momentum for the past fifteen years. However, dynamic languages are also arguably the biggest source of controversy in the industry. In this talk, Steve Yegge debunks some of the issues considered central to the debate, and then shares some novel techniques people are using to produce static-quality tools and performance in dynamic languages. May 7, 2008 lecture by Steve Yegge for the Stanford University Computer Systems Colloquium.