The map of the human genome - poetically called the ?Book of Life?- is complete; or is it? At great cost, in labor and funds, some 3.3 billion DNA base pairs have been sequenced (actually, since human cells are diploid, there are 6.6 x 10⁹ base pairs). The sequences have been released into the public domain. The event is a remarkable achievement and probably a landmark in the history of science, but we are a long way off from using this alphabet to read meaningful words or even sentences. So far, with the answers provided to our questions, the unanswered unknown becomes even vaster and the scientific, ethical and social implications are still unfathomed. The more we learned, the more there is to explore.
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