There is no such thing as philosophy-free science, just science that has been conducted without any consideration of its underlying philosophical assumptions.

Isn't it true that whatever isn't determined by our genes must be determined by our environment? What else is there? There's Nature and there's Nurture. Is there also some X, some further contributor to what we are? There's Chance. Luck. This extra ingredient is important but doesn't have to come from the quantum bowels of our atoms or from some distant star. It is all around us in the causeless coin-flipping of our noisy world, automatically filling in the gaps of specification left unfixed by our genes, and unfixed by salient causes in our environment.

In 50 years - or 20 years, or 200 years - our current epistemic horizon (the Big Bang, roughly) may look as parochial as the horizon Newton had to settle for in his day, but no doubt there will still be good questions whose answers elude us.

Let me lay my cards on the table. If I were to give an award for the single best idea anyone ever had, I'd give it to Darwin, ahead of even Newton or Einstein and everyone else. In a single stroke, the idea of evolution by natural selection unifies the realm of life, meaning, and purpose with the realm of space and time, cause and effect, mechanism and physical law. It is not just a wonderful idea. It is a dangerous idea.

In the beginning, there were no reasons; there were only causes. Nothing had a purpose, nothing has so much as a function; there was no teleology in the world at all.

We live in a world that is subjectively open. And we are designed by evolution to be "informavores", epistemically hungry seekers of information, in an endless quest to improve our purchase on the world, the better to make decisions about our subjectively open future.

I am confident that those who believe in belief are wrong. That is, we no more need to preserve the myth of God in order to preserve a just and stable society than we needed to cling to the Gold Standard to keep our currency sound. It was a useful crutch, but we've outgrown it. Denmark, according to a recent study, is the sanest, healthiest, happiest, most crime-free nation in the world, and by and large the Danes simply ignore the God issue. We should certainly hope that those who believe in belief are wrong, because belief is waning fast, and the props are beginning to buckle.