The only kind of coercion I recommend is mutual coercion, mutually agreed upon by the majority of the people affected.

No one should be able to enter a wilderness by mechanical means.

People are the quintessential element in all technology... Once we recognize the inescapable human nexus of all technology our attitude toward the reliability problem is fundamentally changed.

A coldly rationalist individualist can deny that he has any obligation to make sacrifices for the future.

The optimum population is, then, less than the maximum.

Religious reasons, which is no reason. I notice Skeptic had a review of Dennett's book, Darwin's Dangerous Idea. Religious reasons amount to what Dennett terms "skyhooks." Do you believe in skyhooks? I don't.

Throughout history, human exploitation of the earth has produced this progression: colonize-destroy-move on.