The 10% stacks additively, each time you do the deal, this status is applied to a different 10%. If you sacrifice 10 fingers, the entire world is guaranteed basic human needs (food, water, shelter, clothing, healthcate, etc…)
Nobody knows you saved them. Would you do it?
If everyone knows about the fact that you can do this deal, would that change your mind?
Every single finger. I’d give my arms and legs too if it would help. Once the world was fixed I might want to take part in it again too, if nobody knew it was me. If it was public knowledge that I did it though, I’d probably keep being a hermit. I do not like attention or people knowing who I am.