Harvard University Press by Frank Pasquale, published by The Belknap Press of Harvard University Press. Copyright © 2020 by the President and Fellows of Harvard College. Used by permission. All rights reserved. We might once have categorized a melanoma simply as a type of skin cancer. But that is beginning to seem as outdated as calling pneumonia, bronchitis, and hay fever “cough.” Personalized medicine will help more oncologists gain a more sophisticated understanding of a given cancer as, say, one of a number of mutations. If they are properly combined, compared, and analyzed, digitiz...