Each issue of ES sports a theme, but occasionally a theme beneath a theme evolves from the separate articles and columns. I like when that happens. This month, you might notice the struggle to get past certain O&M and design habits. Sure, they used to be state-of-the-art or at least reasonable, once upon a time. Decades later, however, technology or increased risks have made them anachronistic choices, and yet they keep a toehold in modern practices due to sheer habit or laziness (or both).