In September, 2009, Sum became the number 2 book in the United Kingdom on Amazon's bestseller list, only behind Dan Brown's Lost Symbol.
Our ignorance of the cosmos is too vast to commit to atheism, and yet we know too much to commit to a particular religion. A third position, agnosticism, is often an uninteresting stance in which a person simply questions whether his traditional religious story is true or not true. I call myself a possibilian. Find out why.
Listen to an interview on BBC's Today Programme regarding the new iPad book Why the Net Matters.
Want to know how neuroscience will force major changes in our criminal justice system? Read David's article The Brain on Trial in The Atlantic. Now anthologized in 2012 Best American Science and Nature Writing.

SUM has been turned into an opera at the Royal Opera House in London (Composer: Max Richter, Director: Wayne McGregor). The London Evening Standard hails the opera as "immersive, meditative and sweetly fascinating". Read about the background of the collaboration in Wired.