Conversely, the thinking can go: - You're proposing to change something - That change might cause some harm - Therefore this must not be done It's a trolley

Conversely, the thinking can go: - You're proposing to change something - That change might cause some harm - Therefore this must not be done It's a trolley problem, where you could do something, and might kill a few birds, or do nothing and stand by while nearly a thousand times more perish.