" Open the "book of life" and you will see a "text" of about 3 billion letters, filling about 10,000 copies of the new York Times Sunday edition. Each line looks something like this:

TCTAGAAACA ATTGCCATTG TTTCTTCTCA TTTTCTTTTC ACGGGCAGCC

These letters, abbreviations of the molecules making up the DNA, could easily mean that the anonymous donor whose genome has been sequenced will be bald by the age of fifty. Or they could reveal that he will develop Alzheimer's disease by seventy. We are repeatedly told that everything from our personality to future medical history is encoded in this book. Can you read it? I doubt it. Let me share a secret with you: Neither can biologists or doctors. "

― Albert-László Barabási , Linked: How Everything Is Connected to Everything Else and What It Means for Business, Science, and Everyday Life