Proof of my existence.

I truly lack any. Is there any possible way to prove, for certain, that I exist? Similarly, I often feel like others stop existing when I am not with them, because technically they do. If they are not being perceived, then they are not a part of my reality but rather a creation of my thoughts, or a memory. My thought then, is that my existence is created and proven when I am with others who observe and react to me. However, the percentage of people on this Earth who know of my existence is so ridiculously small that I can assume mathematically that the probability of my existence, on average, is incredibly low. People who seek the spotlight, or are placed there by circumstance, such as a movie star or any major political figure have a much higher probability of existence because millions of people view and react to them everyday. This suggests that the quest for fame and power is actually a quest for the most common human drive, a proven existence. Technology also increases one's ability to increase their probability of being a part of reality. Facebook, twitter, youtube: They all allow humans to show themselves to the world and stay constantly on the minds of others. Right now, for instance, I am skyping with my friend Whitney, and suddenly I exist in her world again without having to actually go visit her in Boston. The proliferation of social networks and other life-sharing technologies will continue to grow and become more and more popular because of the inbred human intent to make sure they are perceived. I know Mr. Wilcox will read this, and possibly a few others, and that thought makes me happy because it means I will be leaving a mark on this reality and on the reality's of at least a few others. I will exist for the briefest moment, and then be forgotten until I enter their perception once more.