'Because pwME know that a crash is unpredictable and impossible to reverse, the goal of pacing is to not encounter the symptoms at all. Success is measured not by a fast and furious response at the moment of crisis but by the absence of a need for intervention. But US society, like a new pwME still unfamiliar with the costs of PEM, is staring down a cycle of “crashes” from which we won’t be able to easily return'