The term "feign" is often employed in literature to depict the act of pretending or simulating feelings, behaviors, or circumstances, thereby illustrating a tension between genuine emotion and crafted deceit. In Kipling, for instance, characters express anger toward those who feign penitence [1], while historical narratives use the term to describe military leaders deliberately engaging in deceptive maneuvers [2]. Shakespeare’s works, meanwhile, suggest that feigning sincerity or even artistic temperament could mask a lack of true feeling [3, 4]. Similarly, authors like Wilde and Alcott employ "feign" to highlight the unsettling performance of emotions—whether it is feigning folly or happiness so well that it fools everyone [5, 6]—underscoring the complex interplay between appearance and authenticity.