The quote from David Mitchell's "Cloud Atlas" highlights the fragility of hard-won progress. It emphasizes how easily significant advancements that have taken generations to achieve can be undone by the impulsive decisions of powerful figures, such as a president or a general. This suggests a cautionary tale about the impact of leadership choices on societal gains.

Furthermore, the statement speaks to the unpredictable nature of power and its consequences. The phrase "myopic president's pen" alludes to short-sighted decisions, while "vainglorious general's sword" reflects the reckless use of military might. Together, they illustrate that the journey toward progress is precarious and vulnerable to the whims of those in authority.