So, he's saying: there's little or no room for reasoning with people who have been brainwashed by religious bigotry at an early age; science is cool, suck it and see, and don't let myths stand in its way.

Conclusion: An erudite communication directed at the rational, scientifically inclined, eloquently informing them re what they already know. As for the rest, they don't want to know.

"Time is what prevents everything from happening at once" - John Wheeler