How should scientists respond to the allegation that our “faith” in logic and scientific truth is just that — faith — not “privileged” over alternative truths? An obvious response is that science gets results. As I once wrote, “Show me a cultural relativist at 30,000 feet, and I’ll show you a hypocrite… If you are flying to an international congress of anthropologists or literary critics, the reason you will probably get there — the reason you don’t plummet into a ploughed field — is that a lot of Western scientifically trained engineers have got their sums right.” Science supports its claim to truth by its spectacular ability to make matter and energy jump through hoops, and to predict what will happen and when.