Sure, transition is a very real problem. If 90% of people died overnight, there would mayhem and most of the remainder would starve. The fact that 10% populati

Sure, transition is a very real problem. If 90% of people died overnight, there would mayhem and most of the remainder would starve. The fact that 10% population is viable doesn't mean all paths from A to B are valid. Some are catastrophic. That's the current challenge with birthrates. Even slow decreases over decades is a huge financial and productive problem. Like falling out of an airplane. Ground level is perfectly safe. It is the transition that kills you.