Cover of That Which Is Seen and That Which Is Not Seen

That Which Is Seen and That Which Is Not Seen

by Frédéric Bastiat · first published 2006

29mentions
14recommended by
22HN commenters
2010–2026first – last mentioned

64% recommend36% neutral

Why HN recommends it

Short essay on hidden costs and unintended consequences: the broken window fallacy, opportunity cost, taxes, war, and automation. Suits anyone who wants to think through second-order effects like an economist.

Summarised by Claude from recommending comments

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Mentions per year

60 2007: 0 mentions2008: 0 mentions2009: 0 mentions2010: 1 mention2011: 1 mention2012: 3 mentions2013: 1 mention2014: 2 mentions2015: 1 mention2016: 1 mention2017: 0 mentions2018: 2 mentions2019: 6 mentions2020: 4 mentions2021: 1 mention2022: 1 mention2023: 1 mention2024: 0 mentions2025: 1 mention2026: 1 mention200720172026

What Hacker News says

  • ekianjo · Apr 12, 2012 · Recommends

    …Never. I'd like to see a clear argument why the internet, the mobile revolution and the ongoing automation going around us is going to kill more jobs than it creates. I urge people to read Bastiat's "That Which is Seen, and That Which is Not Seen". You'll understand that the implications are never THAT simple not predictable. http://bastiat.org/en/twisatwins.html ---> about your second point: The article may not say that directly, but the…

    on “How Computers Are Creating a Second Economy Without Workers” ↗
  • henvic · Feb 1, 2019 · Recommends

    Please don't. Taxing is evil and has unintended consequences. Just charge for road use instead. * For reference on unintended consequences of taxation I recommend Frédéric Bastiat's "That Which Is Seen, and That Which Is Not Seen" essay. Link: http://bastiat.org/en/twisatwins.html (you can just jump to 'Taxes' or - better - read the whole thing as it is very interesting and not that long). He's more recognized for the Broken…

    on “Self-driving cars will "cruise" to avoid paying to park” ↗
  • mkempe · Jun 14, 2014 · Recommends

    War is destruction. People who claim that war somehow creates wealth are profoundly idiotic, to say the least. Reference: "That Which is Seen, and That Which is Not Seen", by Frédéric Bastiat, in English [1] and the original in French [2] (Ce qu'on voit et ce qu'on ne voit pas) [1] http://bastiat.org/en/twisatwins.html [2] http://bastiat.org/fr/cqovecqonvp.html

    on “The Lack of Major Wars May Be Hurting Economic Growth” ↗
  • hirundo · Jun 11, 2019 · Recommends

    I vote for this collection of Claude Frédéric Bastiat: https://mises.org/library/bastiat-collection. In particular the leading essay, "That Which Is Seen, and That Which Is Not Seen." It may be the quintessential statement of how to think like an economist. The article includes a popularization of it as "Economics in One Easy Lesson" but here's the original source, free, clear and…

    on “Books to Understand Economics” ↗
  • bmmayer1 · Sep 9, 2019 · Recommends

    Economics: - The Wealth of Nations, Adam Smith - Das Kapital, Karl Marx - That Which Is Seen, and That Which Is Not Seen, Frederic Bastiat Philosophy / Politics: - The Republic, Plato - Second Treatise on Government, John Locke - The Law, Frederic Bastiat - Leviathan, Thomas Hobbes - Meditations, Marcus Aurelius -…

    on “Ask HN: What are your favorite books or essays written at least 100 years ago?” ↗
  • grn · Sep 26, 2014 · Recommends

    …been used to produce other goods. If that's the case then a ban on incandescent light bulbs has a hidden cost. You shouldn't look only at the visible effects but also at those invisible. A great essay That Which is Seen, and That Which is Not Seen [1] by Frederic Bastiat comes to my mind. It explores this kind of situations. [1] http://bastiat.org/en/twisatwins.html

    on “The Great Lightbulb Conspiracy” ↗
  • alan-crowe · Apr 5, 2019 · Recommends

    This reminds me of Frédéric Bastiat and his essay "That Which is Seen, and That Which is Not Seen". Nicely formatted at http://bastiat.org/en/twisatwins.html The article notes that "It’s often easier to identify when people didn’t adequately consider the second and subsequent order impacts." That…

    on “Second-Order Thinking: What Smart People Use to Outperform (2016)” ↗
  • bmmayer1 · Nov 6, 2012 · Recommends

    …economy, it needs to get money from the economy. No additional value is created; the cycle is only perpetuated. Frederic Bastiat, who developed the notion of opportunity cost, said it best in his essay That Which is Seen and That Which is Not Seen. It is easy to see the benefits of government spending when it arises (contracts going to construction workers, teachers, etc), but much harder to see the tradeoff of where that money is not being spent;…

    on “Ask HN: Thoughts on private versus government spending (for growth)?” ↗
  • jacoblyles · Jan 3, 2011 · Recommends

    You're committing one of the oldest and most common Economic fallacies, the "Broken Window Fallacy". Bastiat's "That which is seen and that which is not seen"[1] or Hazlitt's "Economics in One Lesson" would help clear up your confusion, or just a good treatment of the Broken Window Fallacy[2]. [1]http://bastiat.org/en/twisatwins.html [2]http://www.investopedia.com/ask/answers/08/broken-window-fal...

    on “2010: Cyberpunk World” ↗
  • mindcrime · May 25, 2016 · Recommends

    Bastiat provides a nice counter point to all that. But I'm too lazy to copy and paste the whole thing here. I'll just suggest reading The Law and/or That Which is Seen, and That Which is Not Seen if you haven't, for another take on things. Note though that there's a lot of subtlety to this whole thing, and Bastiat appears to allow for some notion of lawful taxation, but it's pretty clear that…

    on “Unnecessariat” ↗
  • UncleEntity · Mar 25, 2018 · Recommends

    There might also be a net loss to society for any number of reasons, Bastiat's That Which is Seen, and That Which is Not Seen is of special interest here.

    on “Heat loss from big corporate projects” ↗
  • timtas · Feb 8, 2019 · Recommends

    Interesting fact: Economics in One Lesson is an extended meditation on Frédéric Bastiat's classic essay "That Which is Seen, and That Which is Not Seen." Part of Hazlitt's goal was to make Bastiat's ideas more modern and accessible. However, enough time has passed that some of his examples are a bit dated. I actually prefer the original. Bastiat is a…

    on “Ask HN: What books changed the way you think about almost everything?” ↗
  • timtas · Jun 15, 2019 · Recommends

    It’s a very good intro to economics. However, I generally recommend instead reading the work that it’s based on: That Which is Seen, and That Which is Not Seen by Frédéric Bastiat. [1] Bastiat’s work is timeless, whereas Hazlitt’s, written to be consciously modern at the time, is showing it’s age. [1] http://bastiat.org/en/twisatwins.html

    on “Books to Understand Economics” ↗
  • claytongulick · Dec 21, 2022 · Recommends

    It's one of my favorite reads, That Which Is Seen, and That Which Is Not Seen [1]. Bastiat was stunningly brilliant. [1]http://bastiat.org/en/twisatwins.html

    on “Parable of the Broken Window” ↗
  • claytongulick · Apr 3, 2023 · Recommends

    …wrestled over since humans figured out that houses are nicer than caves. Cities need both taxes and sewers to survive, but too much of either will stink enough to drive off anyone who can. Take a peek at That Which is Seen and That Which is Not Seen [1]. Bastiat had his head screwed on straight for a Frenchman, and had it figured out in 1850. [1] http://bastiat.org/en/twisatwins.html

    on “‘America does so much more to subsidise affluence than alleviate poverty’” ↗

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