Again, this is the argument made to me over 10 years ago, and again, they are wrong. While it is possible to add more code and not get more complexity, it is v

Again, this is the argument made to me over 10 years ago, and again, they are wrong. While it is possible to add more code and not get more complexity, it is very difficult. Generally speaking, adding code adds complexity. Full stop. Excellently executed TDD will reduce overall complexity, but I almost never see that level. Rather, TDD's ability to catch bugs is mostly enough to reduce bugs (and other benefits) overall. But the costs are high.