The ridge or the marsh is the same as picking which way a trolley goes – you get a list of consequences and you pick the least bad. On a ridge you’re exposed to wind and possible fire, but you’ll see the terrain, you’ll have a clear line to help if something goes wrong. A marsh keeps you in a low‑lying spot, damp wood, mosquitoes, a little harder to spot a storm, but the ground is steady and you’re less likely to get blown off. It’s not a moral dilemma, it’s a risk calculation. Look at the weather, the resources you’ve got, how fast you can move, then make the choice that keeps the rest of your plan intact. The only real trolley twist is that if you pick wrong, you still have to deal with it – but you don’t need to debate the ethics, just the practicality.