Cohen thinks, or at least hopes, he can overcome these hurdles. He'll start small: a hundred or so papers on cancer. If all goes according to plan, the machine, known as Big Mechanism, will read them, and begin developing an understanding of the disease. Then Cohen will set it loose, allowing it to scrape the world's research databases for more and more information, thousands of papers. Eventually, it will establish a Grand Unified Theory of cancer, an understanding of how cells mutate and become cancerous, how they ravage the body, as well as which drugs slow the spread. One paper will describe the beginnings of the illness, another the treatment; Big Mechanism would place them all in harmony.