If you're interested in synesthesia, check out this lecture I gave at the University of Sydney in Australia.
Do you think you might have synesthesia? Go to synesthete.org to take the tests and find out. For more about synesthesia, see my book Wednesday Is Indigo Blue
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.
Hear British rocker Jarvis Cocker read the short story "Descent of Species" from Sum.
Interested in issues of memory and the brain? Watch a clip of David on the History Channel.
What does it mean for time to be real? Is time the ultimate stage on which all events play?
Barnes and Noble selected SUM as one of the Best Books of the Year.
Click here to watch David's talk on possibilianism at PopTech. Executive director Andrew Zolli wrote: "This is one of the best talks ever at PopTech. Everyone should watch this."
Your reality need not be constrained by your biology. Read the interview here.
