Good to see you again. Sounds like a trick question. Most of us won't get nuked to death but will rather die slowly after we run out of neighbors to eat, so at that point 1 BTC might well be worth a trillion USD but will buy only one pack of smokes. Also carving blocks on cave walls will be a real bitch.
OK, so, quick question. Let's say in the apocalypse, you have to kill some neighbors but your food situation is still looking good enough that cannibalism is still a strong taboo. Do you go ahead and prepare the meat for future eventualities anyway?
Asking for a friend.