I agree that accelerating technological progress poses risks (and posted a related comment about AI http://news.ycombinator.com/item?id=1407120 ) but don't want to ask people to forgo treatment for the sake of population control which can be otherwise managed. To make it (cheaply) personal, and to prove that you're right about my selfishness, I want my wife's cancer cured while the planet is being saved, not afterwards.

Edit: The cancer is in remission, but curing it is something else