This is a rough presentation from my notes for the SDEC 2015 conference. The basic premise is that Big Balls of Mud result from rampant technical debt. And the cost of technical debt is large. I believe that the forces driving us to repeatedly build big balls of mud are strong. And while technical craftsmanship is necessary to address it, by itself it is insufficient. I explore some root causes through the use of system archetypes. Finally, I suggest some remedial steps for dealing with technical debt based on the quadrant from Martin Fowler. Thanks for checking this out!