I am also confused by this. I’ve heard from many different places, and experienced myself I think, that fasting seems to make all your senses sharper and generally makes it easier to focus. And I’ve heard that this is because when you’re hungry it’s important in the EEA to get food, and focusing helps towards that.
But then why doesn’t evolution just make your senses sharp all the time? The best hypothesis I can come up with is that having such sharp senses is bad or unsustainable over the long term.
In which case you probably shouldn’t fast just for the heightened focus. Or maybe not much more than people in the EEA did.
(Another hypothesis is that people were hungry enough in the EEA to basically be in this state of heightened focus all the time. But then why turn it off as soon as you get food in your stomach?)
Another possibility is that heightened focus wasn’t an unalloyed good in the EEA.
I can’t focus on everything at once, after all; the whole point of focus is that I’m focused on one thing at a time (as in this example, food). If the universe of things other than food that I might notice were I not focused on food-gathering, and thereby be able to exploit or defend against, has a sufficiently high expected value, then relaxing my focus and increasing my peripheral awareness of that universe of things has a high payoff relative to focusing more exclusively on food… at least, when I’m not really hungry.
I am also confused by this. I’ve heard from many different places, and experienced myself I think, that fasting seems to make all your senses sharper and generally makes it easier to focus. And I’ve heard that this is because when you’re hungry it’s important in the EEA to get food, and focusing helps towards that.
But then why doesn’t evolution just make your senses sharp all the time? The best hypothesis I can come up with is that having such sharp senses is bad or unsustainable over the long term.
In which case you probably shouldn’t fast just for the heightened focus. Or maybe not much more than people in the EEA did.
(Another hypothesis is that people were hungry enough in the EEA to basically be in this state of heightened focus all the time. But then why turn it off as soon as you get food in your stomach?)
Huh, so are you talking about attention or willpower? They’re not quite the same thing (though you can use willpower to help focus on something).
Another possibility is that heightened focus wasn’t an unalloyed good in the EEA.
I can’t focus on everything at once, after all; the whole point of focus is that I’m focused on one thing at a time (as in this example, food). If the universe of things other than food that I might notice were I not focused on food-gathering, and thereby be able to exploit or defend against, has a sufficiently high expected value, then relaxing my focus and increasing my peripheral awareness of that universe of things has a high payoff relative to focusing more exclusively on food… at least, when I’m not really hungry.
Yes, that sounds a lot more likely and I’m disappointed that I didn’t think of it.