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    Marshall Brain

    marshallbrain.com · Personal blog · on HN since 2008

    Marshall Brain writes about automation, robots, and the economy, and is the author of the science fiction story Manna.

    Visit blogHN submissions
    AI & Machine LearningEconomicsCulture & Society
    What HN says

    HN links Manna in AI and management debates, with some calling it a strong response and others dismissing its portrayal of workers as naive.

    Stats for nerds
    333HN people shared it
    63linked in comments
    297story points
    Feb 2026last shared
    2017people per year2026

    Top posts on HN

    1. 1
      Manna – Two Views of Humanity's Future (2003)
      132 people · 105 points · first shared 2020 · 25 comments on HN
    2. 2
      How to Make a Million Dollars
      5 people · 99 points · first shared 2008 · 32 comments on HN
    3. 3
      Manna chapter 1 - interesting take on AI & robots
      156 people · 28 points · first shared 2008 · 1 comments on HN
    4. 4
      Manna – Two Views of Humanity's Future
      35 people · 11 points · first shared 2020 · 1 comments on HN
    5. 5
      Manna: Two Views of Humanity's Future
      9 people · 11 points · first shared 2011 · Discussion on HN
    6. 6
      Robotic Nation
      15 people · 10 points · first shared 2009 · 3 comments on HN
    7. 7
      On telling my son that he is a geek
      2 people · 10 points · first shared 2011 · 7 comments on HN
    8. 8
      Robots in 2015 (2011)
      5 people · 8 points · first shared 2008 · 2 comments on HN
    9. 9
      Robotic Freedom
      7 people · 4 points · first shared 2008 · Discussion on HN
    10. 10
      Manna – 2 views of a human future
      4 people · 3 points · first shared 2021 · Discussion on HN

    What HN people wrote when they linked it

    • alexpotatoJan 2026

      You sometimes hear people say "I mean, we can't just give an AI a bunch of money/important decisions and expect it do ok" but is already happening and has been for years.

      Examples:

      - Algorithmic trading: I once embedded on an Options trading desk. The head of desk mentioned that he didn't really know what the PnL was during trading hours b/c the swings were so big that only the computer algos knew if the decisions were correct.

      - Autopilot: planes can now land themselves to an accuracy that is so precise that the front landing gear wheels "thud" as they go over the runway center markers.

      and this has been true for at least 10 years.

      In other words, if the above is possible then we are not far off from some kind of "expert system" that runs a business unit (which may be all robots or a mix of robots and people).

      A great example of this is here: https://marshallbrain.com/manna1

    • danjocMay 2017

      In truth, we already have UBI. It is social security. Think about it: a country full of fixed income retirees. Sounds great, doesn't it?

      Currently that's not working out though. The retirement age is going up, not down. It's too expensive to give money directly and let people figure it out. The UBI end game is something like the terrafoam housing from Manna.

      http://marshallbrain.com/manna4.htm

      Put all the UBIs in a nice neat little box where we can forget about them, like we do with prisoners. Maybe even add sedatives and birth control to the water, because we certainly don't want resistance or more of them. We'll probably even call them that. UBIs. Universal basic inmates.

    • varjagJan 2025

      “It’s not unusual, except that Manna is telling you exactly what to do every second of every day. If it asks you to go to the back and get merchandise, it tells you exactly where to walk to go get it. And here is the weirdest part — I never see another employee the entire day. The way it makes me walk, I never run into anyone else. I can go for a full shift and never see another employee. Even our breaks are staggered. Everyone takes their breaks alone. We all arrive at staggered times. It’s like Manna is trying to totally eliminate human interaction on the job.”

      All described in prescient classic: https://marshallbrain.com/manna1

    • pglNov 2024

      He was such an amazing guy. We got to interview him on our tiny podcast[1] after we reached out and he so happily joined us for half an hour. His book, Manna (which is $0.99 to download from Amazon[2] or free on his website[3]) is still one of the most fascinating and interesting visions of the future that I've come across (although I don't totally agree it's the only reasonable option).

      What a loss.

      [1] https://www.youtube.com/watch?v=BA5v2cfJp1o

      [2] https://www.amazon.co.uk/Manna-Two-Visions-Humanitys-Future-ebook/dp/B007HQH67U

      [3] https://marshallbrain.com/manna

      Edit: Fixed "free to download from Amazon" - it's not

    • drewg123Feb 2019

      We're heading toward a future where more and more is automated and there is less and less room for non-creative work. Let's face it, not everybody can be creative in a way that is lucrative. Do we really want to doom more and more of the population to a subsistence income, while more and more of the gains due to automation go to a shrinking segment of the population? I tend to think that a generous UBI is really the only sensible thing to do.

      In case anybody has not read it, Mana, is a short story based on an extrapolation of this kind of rise of automation. I highly recommend it: http://marshallbrain.com/manna1.htm

    • bmn__Feb 2025

      > Does Earth become a giant favela ruled by a dozen trillionaires with a tiny supporting bourgeoisie?

      Yes. SF author imagines it would be more efficient to concentrate the proles of into a small agglomeration of buildings. It's easier for the policebots to keep track of the economically worthless underclass that way, you see. https://marshallbrain.com/manna4#:~:text=terrafoam

      Wouldn't you rather have an Earth where all of mankind shares in the fruits of automation of labour and everyone can live a blessed live? Read the last few chapters of the story.

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