If you asked yourself the question, "Who would miss me if I were gone/dead?" and you couldn't come up with an answer, what's the point of your life beyond that moment?

Many people can live their lives unobstructed by the idea of nobody else on the Earth caring if they exist or not, but there are many others who have to have someone else (or a group of people) as a support system. This question is directed toward the latter of the two.