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Hank Green 6 Jul 2026 15 here now

Unfortunately, You Need to Know What the Jevons Paradox is

One thing I think a lot AI boosters get wrong is that they think AI will be good at creating new, quality information while, at the moment, the only thing it has shown utility at is organizing existin

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"I might be wrong about this" – Hank Green, like dozens of times in this video XD
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This is arguably one of the most important videos of the historical moment. It's crazy to see the breadth of speculation we need to contain and optimize these new technologies, and humbling to realize how little we really know about our trajectory
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"May you live in interesting times"
The worst curse on the discworld
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@davea1752 From YouTube ↗ 11 Jul 2026 21
As someone who has developed code for 40 years, I only spend 20% of my time “creating” code and yes 20% is generous, I wish it was as high as 20%. The rest of my time is spent maintaining code, and a lot of that,most, isn’t my own code. I also spend a lot of time figuring out the “why” of systems. Looking at old code (and by old it can be just a mere five years) I can easy tell you WHAT it is doing, just as AI can, but not so easily tell you WHY, and this is where I can see AI collapsing a bit. People will use AI to create enormous amounts of code and as changes happen (inputs, requirements change over time) and code stops working, the details, the why would have been long forgotten, and the maintenance (the 80% of my job) will go through the roof.
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The same thing happened about 50 years before Jevon when the cotton gin was created. People thought the automatic de-seeding of cotton would make slavery essentially irrelevant, but the opposite ended up happening.
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Guttenberg never imagined printing presses being used for instruction manuals for water heaters.
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“Accidentally drowned” upsets me. People need to drown with more intentionality.
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Corrections!!
People have pointed out that the word "paradox" does indeed mean "counter-intuitive thing" rather than the a logical paradox like "this sentence is false." I have been laboring under the illusion that "logical paradox" and "paradox' are the same things! This is a disaster. Point for Jevons!
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@cebo494 From YouTube ↗ 7 Jul 2026 813
By far the best piece of speculation I've seen is Tom Scotts "2030: Privacy is Dead" talk that he did in 2015. Considering it was written before LLMs, it's felt almost scarily accurate so far.
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So like how the cotton gin actually made slavery worse?
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@lwilso9152 From YouTube ↗ 7 Jul 2026 823
My husband is a video engineer, he uses AI to code everyday. He was optimistic at first that using it would help take some work off his plate, but he works just as hard now if not harder because people on his team are demanding more features, and all the AI is doing is making more bugs more quickly. It’s like that comic “I’m doing 1000 calculations per second and they’re all wrong”
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Hank: you can tell whether or not the code does the thing you ask it to do.
Me, a computer scientist: wait... no that's actually really hard.
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@GuyKisel From YouTube ↗ 7 Jul 2026 7800
I'm a software engineer. I specialize in developer efficiency, workflow automation, code quality, tools, reliability, etc. Force multiplier stuff. So this feels very directly relevant to me.

I think it's important to keep in mind that there's the cost to write code, but separately there is the cost to maintain code. Code is tech debt the moment it's written. It rots and breaks, kind of like all the aging bridges all over the USA.

The world of software is changing a lot with AI, but I believe AI is still just one more tool, and we've spent decades using code to create tools to write code, and they help, but there are still serious limitations. AI lets us generate code, but that generated code tends to be a complex buggy mess, no matter how much people claim otherwise. And complexity itself is tech debt that slows everything down.

AI makes prototyping much, much faster. But actually building reliable systems doesn't feel that much faster than Pre-AI, so far. It's more like having advanced Google, where I can work more broadly outside my SME areas and still be somewhat effective.

I've been experimenting a lot with using AI. It is powerful for a lot more than just directly writing
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@AJratcliffe From YouTube ↗ 7 Jul 2026 3800
3:38 "The Jevens Counterintuitive Fact About Economics" doesnt have the same ring to it
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@73DZN From YouTube ↗ 7 Jul 2026 1200
"Unfortunately, you need to know" is like my whole life in 5 words
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@crestenor From YouTube ↗ 7 Jul 2026 3900
Okay Hank Green I will learn what the Jevons Paradox is
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Near the end you asked, “What am I doing with my life?”

For what it’s worth, you’re helping at least one person rediscover hope, curiosity, and delight. I’d gotten to a place where those things felt pretty far away, and your videos have been gently but persistently reminding me that the world is still fascinating, that no effort is wasted, and that where I place my attention shapes how I feel, what I care about, and how I experience the world.

So… that’s one thing you’re doing with your life.

Thank you!
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@OnThePlow From YouTube ↗ 7 Jul 2026 9700
Woah Hank I appreciate the fact that you keep making these intros to the Connections videos longer and longer!
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@cassieasim From YouTube ↗ 7 Jul 2026 4700
“There are only four things. Possibly six.” - Hank Green
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As Hank becomes more efficient, we will use more of him. All as Jevon has commanded