The passage suggests that manic depression should not be seen merely as a disorder, but rather as a beneficial trait that has persisted in human evolution. The author proposes that if this condition were truly a disadvantage, it would have naturally declined over time, much like traits that do not contribute to survival are eliminated. Instead, manic depression might confer advantages that enhance creativity and energy, characteristics that have likely contributed to significant historical achievements.

By highlighting the potential for genius and productivity during manic episodes, the text posits that many influential figures throughout history may have experienced manic depression. This perspective reshapes the understanding of the condition, portraying it as a source of inspiration and intellectual vigor that could lead to remarkable advancements across various fields, including science and the arts.