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Could We Run Modern Society on Human Power Alone?

lowtechmagazine.com

24 points by suchabag 9 years ago · 18 comments

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no1youknowz 9 years ago

Posted earlier: https://news.ycombinator.com/item?id=14437923

simonsarris 9 years ago

The answer to the headline is an emphatic "No."

> Unlike fossil fuels, human power can be a clean energy source, and its potential increases as the human population grows.

It's the opposite: Human power cannot feed the 7.5 billion people and growing. You need ammonia and (right now) oil, and lots of it. When we "scaled up" humanity, we left human power long behind as an option for any but a few hundred million. Just the food part alone is impossible.

They then segue into a different question: "if human power can sustain a modern lifestyle", but even then they don't mean modern food requirements, they really just mean "can humans keep the lights on in the one building they are in."

> A human powered student community has enormous potential for a reduction in energy use.

This is a complete misunderstanding of just how much energy gets the people in the Netherlands their... say avocados. Thinking of your energy consumption as lights in your building is so very off.

I recently wrote a counter-point essay to the headline's topic, how technology is now a moral necessity just to keep humanity treading water, and how oil set off a Malthusian time-bomb.

https://hackernoon.com/the-moral-technology-6413ca8449c9

  • jacquesm 9 years ago

    The average person, even the educated ones so maybe more than just average is utterly incapable of estimating complex derivatives such as their energy footprint.

  • bamboozled 9 years ago

    Good write up, thank you.

    I do believe too many people are the opposite and frantically think about the future, also dependent on the idea of technology and consumption of petroleum derived goods bring them happiness and salvation.

grondilu 9 years ago

I once wondered the same thing, and I stopped very soon as I considered something as simple as a 60W light bulb.

60W is 60J per second. 60J is about the energy it takes to weigh 6kg up one meter.

So basically to keep a 60W light bulb lit, you'd have to raise 6kg one meter high every single second.

No way.

hn_throwaway_99 9 years ago

How about a simple answer: no.

This is basically an art project. Even a basic thought process shows how ridiculous this is: If you're going to use humans just as basic energy input, why not just burn the food directly and use that?

krallja 9 years ago

Is the picture of "clothes drying" supposed to be representative of the project? Because I don't see any human power involved there. That's 100% solar and wind.

ythn 9 years ago

According to Rick and Morty you probably could - assuming you are able to create microverses where entire planets are manually generating energy for you.

rmah 9 years ago

The short answer is "no". But a human powered residence may be possible, but that ignores the huge amounts of power consumption required to build and support that residence.

asdfqwerutoe 9 years ago

People will eat more if you make them bike for 6 hours a day.

arnaudsm 9 years ago

Human power = Food And producing food has terrible efficiency compared to any traditional resource.

The only good point is the health benefits of such exercise.

jlebrech 9 years ago

why does society have to be modern? walk to the tree, walk to the stream, walk back to the hut.

  • cidibe 9 years ago

    There are way too many of us to live like that.

    As much as we complain about it, modern society also kicks ass compared to anything else.

ericcumbee 9 years ago

Hello Black Mirror Episode

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