…ing sure people don’t die of dehydration, which isn’t an explicit market goal. My big issue here is thinking that implicit factors are always going to be the most responsive way to signal price changes, instead of a more explicit factor like someone saying “I’m dying please give me some water.”
I don’t understand what you mean here. Why is saying “I’m dying…” more explicit than willingness to pay? After all, anyone could just say that, and then use the water to water their plants.
By the way, did you actually read Locke’s essay? He deals with the issue of starvation in it.