At first we thought that perhaps this was artifact. These deep sequencing tools are relatively new. But as they become more and more accurate, we've determined that this information is a form of life, or at least some of it is a form of life. And while the hypotheses for explaining the existence of biological dark matter are really only in their infancy, there's a very, very exciting possibility that exists: that buried in this life, in this genetic information, are signatures of as of yet unidentified life. That as we explore these strings of A's, T's, C's and G's, we may uncover a completely new class of life that, like Beijerinck, will fundamentally change the way that we think about the nature of biology. That perhaps will allow us to identify the cause of a cancer that afflicts us or identify the source of an outbreak that we aren't familiar with or perhaps create a new tool in molecular biology.