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Comment by jvanderbot | Hacker News Reader

This feels like video game analysis. Unit is likely to die, therefore do not spend resources on unit. Leave unit behind.

There is no world in which I would leave a family member or close friend to die in the woods alone, especially if I have no idea what germs are, why people die when they bleed, and am listening to a voice I have heard my whole live cry out in pain. Even if I knew for sure they were going to die, I would sit with them, or move them, or something.

Thought experiment: Would you visit your mother or father in the hospital knowing they were going to die that day? I mean there's nothing you can do, why bother??

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It's not about writing off the injured due to their low odds of survival, its about your willingness to lower those odds for your other loved ones, or yourself. How does your thought experiment change when caring for your mother/father means your children might starve?

Look man, modern people die trying to save strangers from drowning. We can just see actual behavior, we don't need bloodless thought experiments

Ok but for every person who tries to save a stranger from drowning how many other people choose not to? Probably not 0. If I saw a stranger drowning and they were larger than child-sized I probably wouldn't attempt it- apparently its pretty common for the drowning person to panic and use their savior as a raft, drowning them in the process

Why do volunteer firefighters rush into a burning building to try to save children from some family they have never met before? Every day we afforded examples of people sacrificing their personal interests for the benefit of others.

But also, biologists usually use a definition of "altruism" that does not include close kin. Richard Dawkins was explicit about this in his 1976 book "The Selfish Gene." Helping someone you are directly related to is not considered altruism.

I think in the premodern era, you never saw strangers (not like we do). You probably had a pretty good idea who everyone was, and probably knew most people pretty well. If that's even partially true, then although nowadays you might drive past a person on the highway, if your cousin or a lifelong trusted acquaintance asked for help you'd give it. It seems that everyone you saw, esp saw injured or sick, was probably someone you've known your whole life.

You're also heavily discounting the fact that you had to live not only with yourself if you did nothing, but the shame/angst of their family who you definitely lived next door to. TFA is about taking care of "their own", not strangers.

It's literally a skill issue. The correct way to help a drowning person is to get behind them and then hook your weaker arm around their neck & head while doing backstroke with the other. Having them on their back facing up (and out of the water) dispels the panic reflex. But this obviously requires you to be comfortable int he water and have some prior rescue training.

Good way to look at it. More broadly, there must have been different groups that practiced different policies with regard to ill and injured. Some of the groups fared better than others. Since most of modern societies do care about their ill and injured, it appears that this policy proved more advantageous. Even if only slightly so.

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