"Genius epidemicus" refers to a concept in medical history where a particular idea or theory spreads rapidly among a group or community. Synonyms for this term can include "epidemic idea", "contagious concept" or "infectious theory". These phrases highlight the contagious nature of an idea that spreads rapidly and widely, influencing the thoughts and actions of individuals within a population. In today's digital age, the proliferation of viral content on social media platforms exemplifies the power of genius epidemicus. Recognizing and understanding the synonyms for this term allows us to better grasp the extent to which ideas can shape society and our shared beliefs.