Workplace ergonomics have long been defined by stability: fixed postures, lumbar support, carefully calculated angles, and the relentless pursuit of the "correct" way to sit. Comfort was largely associated with maintaining a supported posture in chairs designed to reduce movement, align the spine, and sustain the body during long periods of sitting. Today, as contemporary workspaces become increasingly flexible and hybrid , questions are emerging around whether comfort is truly linked to static permanence, or rather to the possibility of movement itself. Although ergonomic chairs have evolved significantly, many still operate within a "corrective" logic, managing discomfort through mechanisms and adjustments without fundamentally reconsidering the relationship between the body and motion. Recent research on sedentary behavior and active ergonomics has challenged the idea of stillness as the ideal condition for comfort.…