The Grading Pseudoscience Rulebook "How should we think about grades? Do they even matter? What are the formulas and rules we should consider?" Delaney Miller (@millerd13) muses at the link in our bio. With upgrades, downgrades, and passionate debate making the rounds each week in the climbing world, Miller, speaking with @adam.ondra, @jonathansiegrist, and @drewruana, explores the history of climbing grades, their utility, and where they fall short. Tap the link in bio to read on. Photo by Elliott Bernhagen @anikulapu / Red Bull Content Pool