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Without data centers, GDP growth was 0.1% in the first half of 2025

https://fortune.com/2025/10/07/data-centers-gdp-growth-zero-first-half-2025-jason-furman-harvard-economist/
131•ryan_j_naughton•2h ago

Comments

pavlov•1h ago
AI bubble masking the self-inflicted tariff recession.
Animats•1h ago
US annual population growth is about 0.5%. So per capita GDP not counting data centers went down.
mytailorisrich•53m ago
That's what has been happening in the UK for several years.

GDP per capita is more important than overall GDP to see the trend in prosperity, IMHO.

stinkbeetle•52m ago
Yes, and GDP per capita with them went up. And removing a source of GDP that has been shrinking might make GDP growth look even higher. What does it tell us? Anything?
Tarsul•25m ago
I think this year the population actually goes down. So per capita GDP growth is even bigger than 0,1%!
epistasis•1h ago
See also this Bloomberg article on how circular the deals are:

https://www.bloomberg.com/news/features/2025-10-07/openai-s-...

This is another way that bubbles form, a cabal of cross-dealing giants that don't have solid revenue to ground the valuations is a very scary position.

I believe that a lot of AI is real, but the realness of AI's impact on the economy does not prevent a bubble. The dot com bubble didn't make the internet any less real or impactful on everyone's lives. So it feels like very scary times ahead.

Also, the devaluation of the dollar is an extremely tricky situation for the US. Morgan Stanley puts it at 10% less value in 2025, and another 10% drop by the end of 2026:

https://www.morganstanley.com/insights/articles/us-dollar-de...

I was never scared with the inflation during Biden because it seemed like we would be on track to put the economy in the right position, because it was global and the US was doing so much better than the rest of the world. But now, it feels like the US is intentionally entering recession and choosing a future of poverty.

mgh2•1h ago
https://news.ycombinator.com/item?id=45509898
hiimkeks•1h ago
Cory also has a giant writeup about the whole situation, including more links.

https://pluralistic.net/2025/09/27/econopocalypse/

ciconia•1h ago
Very cheap cloud hosting coming soon to a data center near you...
rixed•41m ago

  > the devaluation of the dollar is an extremely tricky situation for the US
For many, the revaluation of the dollar is actually the scary scenario. See for instance this (maybe too) subtle analysis from Yanis Varoufakis:

https://unherd.com/2025/02/why-trumps-tariffs-are-a-masterpl...

grumpy-de-sre•16m ago
Over the last few years I've been drifting away from focusing on pure technology plays. Somehow I feel like maybe that might save my bacon someday ... or maybe AI will completely consume the world and we'll all be left behind.
zundunka•1h ago
They estimate data centers/software are responsible for 92% of GDP growth? If that's true, then we are up to some bad news soon.
kubb•1h ago
Isn’t it funny that there are like 3 numbers that matter to people when evaluating economic conditions?

Inflation, unemployment, GDP.

It’s like we’re incapable of nuance on a societal level.

lmm•1h ago
More like we know that people can always find an obscure enough number to support what they want to do. There's a lot of value in having simple metrics that are hard to game.
kubb•1h ago
Inflation is easily gamed by manipulating the basket of goods used to determine it.

Unemployment can be manipulated by only including people who „actively search” for the job, and tweaking the definition of „actively”, counting part timers.

GDP is gamed by circular money movements.

lmm•1h ago
Well sure, but the more complex your measurements are the worse you make it. Rather than looking for more nuance, we should look for stricter approaches to avoid those issues.
carlmr•58m ago
A lot of our economy relies on "number goes up" to tell people to invest

The metric doesn't matter as long as it goes up most of the time.

re-thc•47m ago
> Inflation is easily gamed by manipulating the basket of goods used to determine it.

Just turn the tariffs on and off again.

scrollop•1h ago
Matter to whom?

If you're an economist or analyst, I have a feeling it's a little more nuanced than you're stating.

If you mean "for the average person" or "what the media reports for the average person", then, "duh".

The normal distribution of IQ in the general population would cause a general media company to limit it's complexity of data reported.

kubb•1h ago
To central banks, in politics and in the media.
throwaway290•48m ago
do you live in the same reality as me?

Tons of articles posted here talk about economy topics but not inflation or GDP or unemployment

As to banks, there's a LOT more stuff considered in monetary policy, like domestic consumption/investment, gov spending/taxes, net exports/imports.

populist politics focus on unemployment and inflation but even Trump campaigned on reducing government spending which in fact is bad for unemployment but apparently more important to Americans regardless

kubb•41m ago
It seems to me that government spending isn’t a number in the collective consciousness.

It’s the idea that the big gubermant is waisting my money. How much money is actually spent where isn’t a part of that debate and effectively doesn’t matter. No amount of cuts can satisfy that concern.

re-thc•40m ago
> Tons of articles posted here talk about economy topics but not inflation or GDP or unemployment

There are tons of articles about movie stars too - often 80% rumors and not true. It's just noise and ways to get you clicks so has nothing to do with reality.

NoMoreNicksLeft•54m ago
It's ok. Domestic steel and aluminum production were at an all time high, finished goods production nearly doubled, and we rolled several million tons of newly built ships off the dry docks and into the water. Oh wait, those numbers were so shit that we should actively deny their existence let alone relevance.
toast0•40m ago
A broad overview number is going to lack nuance, yes.

There's a ton more of more nuanced measures, many of which get reported too, but don't make a splash as a broad overview economic health indicator because the observations need to be paired with an explanation of the observation, and then you're in the business section and not on the front page.

swyx•36m ago
you want what, 5y5y breakevens?
justlikereddit•1h ago
Behold the miracle! AI is already saving the economy and we don't even have AGI yet :^)
mg•59m ago
So $400B per year is currently spent on datacenter buildout?

To see if that is too much or not, we have to put that number in relation to the value those datacenters will create in the future.

If global GDP is $100T and labor is 50% of that, then the current TAM for intelligence is around $50T.

How much of that has to be automated per year to justify $400B of investment? For a 10% ROI it would be around 1%, right? But the datacenters will not be the only cost of generating artificial work. We also need energy, software and robots. So let's say 2%.

So it comes down to the question whether those datacenters built for $400B will automate 2% of global GDP in the foreseeable future.

And there is another option: That the TAM increases. That we use the new possibilities we have to build more products and services. And see global GDP grow. 2% AI driven global GDP growth would also justify the $400B datacenter buildout.

So let's think about a mix: 1% labor automation and 1% GDP growth per year via AI. That would be needed to justify continued spending of $400B per year for the AI buildout.

simianwords•58m ago
I don’t know why everyone’s confident that the investments won’t pay off. Every such post in HN is such a way. 800 million weekly active users from ChatGPT implies that people actually like LLM’s and likely the growth will still keep increasing. Every signal points to this - so investment in data centers make sense?
catmanjan•54m ago
Imagine how many millions would drive a Ferrari if they gave them away for free
simianwords•39m ago
It’s not true that people are only using it because it’s free.

It’s actually quite interesting to see these contradictory positions play out:

1. LLMs are useless and everyone is making a stupid bet on it. The users of llms are fooled into using it and the companies are fooled into betting on it

2. Llms are getting so cheap that the investments into data centers won’t pay off because apparently they will get good enough to run on your phone

3. Llms are bad and they are bad for environment, bad for the brain, bad because they displace workers and bad because they make rich people richer

4. AI is only kept up because there’s a conspiracy to keep it propped up by Nvidia, oracle, OpenAI (something something circular economy)

5. AI is so powerful that it should not be built or humanity would go extinct

re-thc•38m ago
> Imagine how many millions would drive a Ferrari if they gave them away for free

0.

Ferrari is a luxury sports brand. What's the point of it if it flooded the streets?

techpression•53m ago
They like them when they’re free and/or cheap. But will that be sustainable? The answer to that question is far less certain. Maybe Ads will save them, maybe royalties, maybe price hikes. But it’s far from certain at least.
simianwords•44m ago
I really don’t get this. People actually pay and use and enjoy llms. My company has paid for Gemini and ChatGPT subscriptions and people actually use them.

Why do you automatically assume that people won’t pay for it?

fabian2k•39m ago
Because they probably would have to pay a lot more to make this profitable at the levels current valuations and investments indicate. And the barrier for private persons to pay is much larger than for companies. I don't think anyone has a really solid handle on the economics here yet, as the field is changing very quickly.

But there is a big difference here compared to most software companies. The product does cost significant money per additional customer and usage.

There is a real product here. And you can likely earn money with it. But the question is "how much money?", and whether these huge data center investments will actually pay off.

simianwords•36m ago
> Because they probably would have to pay a lot more to make this profitable at the levels current valuations and investments indicate.

I keep hearing this but this is very unlikely to be true. The cost of LLMs have gone down by more than 30 times in the past 1 year. How much more should it go down until you consider it economically feasible?

fabian2k•25m ago
Why are they building so many data centers then? That is all cost that has to be earned back. And using them as agents creates much higher costs per interactions than just chatting. We also don't know if the current prices are in any way economical, or how they are related to actual development and interference costs.
simianwords•17m ago
Do you think people should have not invested in data centers because of moores law that also applies for cpus? Same mechanics applies there - turns out that when things get efficient, demand increases and more possibilities are unlocked.
techpression•32m ago
Because all numbers point towards it being incredibly far away from being profitable? We also pay for Google Workspace and at 10 euro a month we get Gemini Pro. So while we might pay for it, it’s more of a free addon, we would’ve paid 10 without it too.

You can also do a simple analysis on the Anthropic Max plan and how it successively gets more and more limited, they don’t have the OpenAI VC flow to burn so I believe it’s a indicator of what’s to come, and I could of course be wrong.

simianwords•26m ago
It’s not profitable because of massive reinvestments to r and d.

If you want to question to on the fundamental economics of LLm themselves then how efficient should LLMs get till you decide that it’s cheap enough to be economically viable? 2 times more efficient? 10 times? It has already gotten more than 30 times over last 2 years.

techpression•19m ago
And Claude is more expensive than ever, efficiency gains and all. Those investments doesn’t necessarily pay off, and historical performance is not indicative of future ditto.

I don’t think it’s a matter of efficiency at current pricing but increased pricing. It would be a lot more sane if the use cases became more advanced and less people used them, because building enormous data centers to house NVIDIA hardware so that people can chat their way to a recipe for chocolate cake is societal insanity.

empiko•53m ago
The question is if it is economically feasible. People can enjoy generating funny AI images to share with their friends, but it might not be economically feasible to invest $100B to give them this toy. There is a question of how much value using GenAI generates for the economy.
simianwords•32m ago
The cost of LLMs have gone down over 30 times in the last 1-2 years. At what point would you think it is economically feasible? I think this a question to ask so that we can tackle the fundamental economics of LLMs.
ehnto•23m ago
We would also need to know how many people are willing to pay for it, on a consumer level. Additionally business will need to see real ROI for using it.

At the moment everyone is trying their best to implement it, but it remains to be clear if it actually increases a company's profitability. Time will tell, and I think there are a lot of things obfuscating the reality right now that the market will eventually make clear.

Additionally the economics of training new models may not work out, another detail that's currently obfuscated by venture capital footing the bill.

simianwords•18m ago
Ok sure let’s talk about how much people are willing to pay for it. Do you think they want to pay half the current amount? Quarter? LLMs have already gotten more than 30 times cheaper over last two years.
empiko•10m ago
It becomes feasible when people are willing to pay more than it costs to run it. But I think this will be a pretty uphill battle, as many use cases are hard to monetize (eg proofreading) and for many use cases you will feel pressure from smaller models (you don't need the most expensive SOTA model to generate an email). There is probably just a very limited amount of use cases that are in the goldilocks zone with their difficulty so that people will be willing to pay for them, AND AI is able to solve them. I think programming might be one of them.
wowohwow•52m ago
History doesn't repeat itself, but it rhymes. Callbacks to the infrastructure laid out during dotcom bubble, i.e Cisco, and all of the networking infrastructure. Likewise, internal memos at Oracle indicate they're losing money on their hardware. Anecdotal and hand wavy; but there are plenty of signals out there that it won't pay off. I'm not arguing one way or the other, but there are plenty of arguments for it to not succeed in a way that's required to justify the mind boggling growth we've been experiencing.
re-thc•44m ago
> internal memos at Oracle indicate they're losing money on their hardware

That doesn't mean much does it? Oracle is a huge company. Not just a cloud either. Companies often offer discounts or promotions; so? There could be plenty of managed services, managed databases, CRM and many more that make up for it.

Whilst I'm not sure if Oracle's stock price is right - the memo was more like a way to pressure the stock down for whatever reason.

simianwords•34m ago
The mind boggling growth you should also focus on is consumer demand of LLMs. Can you account for it and then re-analyse?
grues-dinner•45m ago
Building the datacentres may be massively "productive" in GDP terms (servers! GPU! Power plants! Electrical inspection!), but when they're completed, that activity will cease. Datacentres don't employ many people directly and mostly consume only electricity.

So if the action of datacentre building shows up as essentially the only GDP growth, but what later happens in the datacentres fails to take its place or exceed it, there will be a dip.

Whether LLMs grinding away can prop up all GDP growth from now on remains to be seen. People use them when they're free, but people also collected AOL discs for tree decorations because they were free.

simianwords•38m ago
You don’t seem to have got my point. You say the investment won’t pay off but why not? This is quite a big assumption to make considering there’s huge evidence that people like LLMs.
csoups14•25m ago
You don't think it's a bigger assumption that plowing hundreds of billions of dollars into a novel and often misunderstood technology is going to net out positive? We're not talking "people like feeds of cat photos" money and risk here, we're talking about a bubble with the potential to tank the entire economy. On top of that, it's also a higher disruptive technology that should it ramp as quickly as it might will lead to massive amounts of societal strife at a time where we're already stretched a little thin to say the least. "What do you mean Credit Default Swaps don't work? They've been functioning perfectly well these past few years and so far the impacts have only been positive. Tons of people are getting mortgages on houses they weren't in the past, it's the American dream!"
grues-dinner•22m ago
I'm not saying they won't, it's just that datacentre growth is not the same as AI growth. It's related, but it is, by definition, temporary as datacentres are soon completed.

There's obviously evidence people use LLMs. That's not necessarily the same as people paying a noticeable fraction of all their money to use them. And even if "normal" people do start taking out $50 subscriptions as a matter of course, commoditisation will push that price down as will "dumping" of cheap models from overseas. A breakthrough in being able to run "good enough" models very cheaply, or even locally, would also make expensive cloud AI subscriptions a hard sell. And expensive subscriptions are the only way this pans out.

It hasn't yet been shown that AI is a gas that will fill all the available capacity, and keep it filled. If bread were 10 times cheaper, would you buy 10x as much? That has more or less happened to food availability in the West over the last 200 years and OpenBread and BunVidia don't dominate the economy.

None of that is sure to happen, and maybe the AI hype train is right and LLMs specifically are worth, say, 0.2*GDP forever. But if it isn't, and it turns out $5 a month gets you all people actually need, it's going to be untidy.

schnitzelstoat•6m ago
Yeah, I don't think ChatGPT is going to take all our jobs, but it might replace Google for a lot of searches.

That alone will be a monumental shakeup for the industry.

floppiplopp•58m ago
Oh well, I guess we have another once-in-a-lifetime economic crisis ahead of us. Ready your tax dollars, prepare the bailouts! We've got some billionaires to save.
netfortius•46m ago
Source: Harvard - an institution this administration doesn't like, so data will probably be categorized as fake news.
stkdump•46m ago
I am surprised that Taiwan and China are not mentioned in the article or in these comments. Given the threat that China will get to Taiwan and capture control over the unrivaled TSMC, investing into silicon while we can is pure and simple de-risking in a de-globalizing world.
lifeisstillgood•41m ago
It’s worth noting that pretty much all the growth in AI / Data centres is an accounting trick as well.

Nvidia just announced it’s investing X billion dollars into OpenAI who will turn around and spend 98% of that on Nvidia chips, so GDP rises, stocks rise but actual free market activity? Not so much

whazor•38m ago
Building physical data centres and GPUs will cost some real money.
usrnm•32m ago
GPUs aren't built in the US, though. I wonder, what percentage of all the stuff in a typical datacenter is actually made in the US
re-thc•26m ago
> GPUs aren't built in the US, though. I wonder, what percentage of all the stuff in a typical datacenter is actually made in the US

Does that matter? So many things these days aren't physically made in the US. So US companies don't get the profits and aren't needed?

The actual "made in" part is a small fraction of the total earnings. See how much an iPhone costs to make vs how much it gets sold for.

usrnm•7m ago
And now look at how making iPhones in China helped to grow the whole Chinese electronics industry, as opposed to inflating some virtual numbers for the US
allie1•4m ago
The margins collected by Nvidia end up in the US. And Nvidia and its employees get paid in the US. Only a small part of the revenue is outside the US.
ChadNauseam•29m ago
It just means that Nvidia is selling the chips for equity instead of selling them for cash. That difference does not turn it into an accounting trick
B-Con•27m ago
GDP is a known silly metric, but it's easy to define and measure, so we keep using it.

I'm often reminded of the quote: "A man marries his housekeeper and that country’s GDP falls".

GDP is uncomfortably linked to granularity of measurement as well as the number of times money changes hands to accomplish a task. Split a pipeline over more businesses boundaries and suddenly GDP is "bigger" despite no change in value or utility.

imtringued•9m ago
They also spent a good chunk of that money on AMD stock, which is a trade that instantly became profitable the moment they announced it, without them ever doing anything.
teiferer•39m ago
> absent the AI boom we would probably have lower interest rates [and] electricity prices, thus some additional growth in other sectors.

In other words, the AI hype comes at the cost of lower growth rates in other sectors of the economy?

It makes sense, since investor money is spent exactly once. If it goes to AI then it doesn't go elsewhere. And if it didn't go to AI then it would go elsewhere.

Sad for folks outside tech. But at least they can AI generate cat pictures now, and watch their tech friend use AI tooling to write software.

pj_mukh•22m ago
I see this take a lot, but it confuses me. There is no guarantee that LP’s would take that money and instead invest it in <tech I respect that is not AI>.

They would just as likely hoover up housing around the country or some such insanity to capitalize on the scarcity.

VC is actually a pretty effective vehicle to separate rich people from their money so society can try crazy things. You just don’t agree with this particular adventure and frankly there will never be the perfect alternative adventure.

mordae•17m ago
Most people wouldn't vote or participate in this investment craze. Maybe we shouldn't let unelected lucky nobodies decide how we invest our time for us.
pj_mukh•13m ago
I’m not saying don’t tax them or let them influence politics.

I’m saying letting them go to space or turning sand into intelligence is infinitely better than buying land and charging us rent (what most rich people have done in history).

eunos•22m ago
If the AI is indeed a bubble and burst not so long after this... We might even have a Warhammer 40k style anti AI movement
KronisLV•12m ago
I mean, most of my friends (especially the artists but also software devs) seem to hate AI with a passion: sometimes because of the ethical bankruptcy, other times because of the amount of slop it produces and how in your face it is due to the hype cycle, other times due to a belief that it more or less leads to brainrot and atrophy of cognitive abilities.
allie1•5m ago
The slop is real. Especially when I see promoters of platforms for vibe coders. They don't understand the implications of lack of security in potentially viral apps. It's easy to consider them as WMDs.

People have the same password across services. They share personal information. In a geopolitical climate as today's, where the currency of war is disruption, it can wreak havoc.

throw94i4485•10m ago
What else US would spend money on? Real estate, crypto and wars! At least AI does go somewhere!
zerosizedweasle•6m ago
That’s the most unforgivable part of this. How this is starving and destroying the rest of the economy
skywal_l•33m ago
Zuckerberg and al are expecting a bust so they can consolidate for cheap. We've seen this before again and again. Nothing new here.
ottomanbob•30m ago
Wow, deflation is becoming so obvious that even the geniuses at Harvard are noticing.
aussieguy1234•17m ago
so much for the AI productivity boost...
jeisc•13m ago
Under Nazi rule, Germany had full employment because not having a job was a ticket to a concentration work camp

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