Everything we know about bio­log­i­cal sci­ences, med­i­cine, agri­cul­ture, dis­ease, what­ev­er, is based on study­ing one exam­ple of life. Life on Earth. Life as we know it. If we find anoth­er exam­ple that’s dif­fer­ent, a sec­ond gen­e­sis, and inde­pen­dent orig­in of life, com­par­ing those two might enable us to answer ques­tions that we would nev­er be able to answer if we only had one exam­ple to study. That could provide prac­ti­cal ben­e­fits for humans as well as bet­ter under­stand­ing of how to man­age ecosys­tems, etc.