Getting back to the subject, this observation of the rats has no application to what I have been arguing. The rat gets a bigger reward for what is actually the same risk as far as it knows. No, John, this argument does not impress me in the least. Humans are no different. No, it doesn't.
Organisms are in competition with eachother.
Thus, don't stand in front of traffic. I agree that assessing risk is not always simple, - I think the situation of the rat is more complex than it looks as a quick example, and it can get even more complex, no question. It is one of the reasons we talk here, putting out ideas, seeing if someone can find the flaw that makes our assessment of the situation different than we thought, perhaps riskier, perhaps less energy efficient. I see tremendous flaws in assessing risks about sustainability. Valuing life is not so complex, though, you take the greatest chance of sustaining life for the least risk, that is automatic.