This is a critical look at our previous podcast episodes on VO2max training, and with hindsight provide new and additional context on those training recommendations, plus other effective ways to do VO2max training, with their coaching and contextual aspects. We investigate some instances of "VO2max blocks" in the scientific literature, reexamine the 30/15s paper, and discuss additional factors that confound the interpretation of those and other published results before considering how we can use that information to our advantage when training.