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iugtmkbdfil834 4 hours ago

Can you elaborate a little? I suspect it is a well known concept, but its the first time I heard of it in this context.

JimmyBuckets 4 hours ago | parent | next [-]

Essentially its the idea that the interaction between an incumbent power and rising "challenger" power inevitably leads to war between the two. I was expressing my hope that if this does happen, the war can play out in less destructive arenas - one of which is in the competition for reserve currency status which the US has held for the whole of the modern era. This article possibly points at China's first shots in this conflict.

Edit: credit LarsDu88 for correcting me on its age. I originally stated the idea was very old (2.5k years) but actually its a recent idea based on an ancient conflict between Athens and Sparta

WJW 3 hours ago | parent | next [-]

The obvious counterexample would be the previous most powerful empire in the world (ie the UK) ceding that title to the USA after collapsing after WW2? No war between the UK and the US was needed.

dragontamer 3 hours ago | parent | next [-]

The precious powerful empire (before Britain) was undoubtedly the Spanish Empire.

The Spanish-American war was closer to the USA opportunistically feasting upon the remains of the fallen empire (The British already overtook the Spanish in terms of power).

It's hard to pinpoint the fall of the Spanish Empire. But it's even harder to point out military action between Spain and Britain (undoubtedly the rising star in the next centuries). There is the big war of Spanish Succession but that's more opportunistic and more like a major civil war that spilled out of Spain and across Europe.

Lots of war between Spain, HRR, France and other parties. But strangely not so much with Britain....

---------

In both Spanish and British cases, the real enemy the whole time was just a boatload of debt.

JimmyBuckets 3 hours ago | parent | prev | next [-]

The UK was a declining power that had been absolutely gutted by war and owed huge debts to the US that it had accrued to fund the war. I believe Thucydides Trap is more about the situation we have now with the US and China where both are moving from strength to strength.

WJW 3 hours ago | parent [-]

I'm not really seeing the USA moving from strength to strength lately TBH. Iran is a disaster, the Navy now has 3 (or 4, depending how you count) failed warship projects in a row, economic growth outside the AI/datacenter boom has dropped to near zero and the internal political climate is polarized to the point of inactivity. Most of its traditional allies have been moving to distance themselves from the USA and worldwide trust in the USA as "leader of the free world" is at the lowest point in decades.

But quite beyond that, I'm just saying that the Thucydides trap is not an iron rule. The first place I looked was a counterexample and I'm sure there have been many more over the centuries.

noir_lord 3 hours ago | parent | prev [-]

> No war between the UK and the US was needed.

No war was "needed" to settle who was #1, it was clear that we (the UK) simply couldn't maintain the empire as it was and we definitely couldn't have fought the US.

We went into WW2 the clear naval power in the world, We exited it in the #2 spot utterly broke.

In less than 4 years the US produced enough ships to eclipse our navy and did it while also producing ridiculously vast amounts of equipment for themselves and their allies across every sphere.

No one with a brain in our foreign office would have even contemplated poking that (and realistically while the US has at times been a questionable ally on the whole in that era they were a reliable ally).

In that kind of total war the side with the larger industrial base wins the war of attrition.

It doesn't matter if the enemy sinks ships if your production rate exceeds the sink rate on a sustained basis you win (somewhat related it's also why naval strategists have been sounding the clarion call about the fact that China now makes more than half of all global shipping, the US is somewhere around 1% - those peacetime yards/skilled works transfer over in a war).

The US did that, they won the war (or their part of it) in the factory lines/mines as much as they did on the actual front.

WJW 3 hours ago | parent [-]

I agree. My point in the GP was that great power transitions are not ALWAYS accompanied by war between the new power and the previous one, as the Thucydides trap argument seems to imply.

War is costly, so (in the absence of bargaining frictions) game theory suggests that an agreement can be reached that leaves both parties better off compared to going to war.

LarsDu88 3 hours ago | parent | prev | next [-]

Its not an old idea at all. Its from a 2012 article by Graham Alison followed by a 2017 book on the rise of China specifically that Xi Jinping read and referenced.

Its claimed to be an old idea, but its actually only recently become popular

JimmyBuckets 3 hours ago | parent | next [-]

You are right. Thank you for correcting me. It never ceases to amaze me just how much I can be confidently mistaken about.

lordgrenville 3 hours ago | parent | prev [-]

If you want to be pedantic, it actually dates back to 1980, in a talk at the Naval War College https://en.wikipedia.org/wiki/Thucydides_Trap

andsoitis 3 hours ago | parent | prev [-]

> Essentially its a very old (~2.5k year) idea that the interaction between an incumbent power and rising "challenger" power inevitably leads to war between the two.

It sounds plausible, but if it is this old there must be a long list of examples. What are some of them?

JimmyBuckets 3 hours ago | parent [-]

As LarsDu88 mentioned above, its actually not this old. The idea is recent but is based on an ancient conflict. That is my mistake. The wiki article has interesting info on the examples that the originator saw:

https://en.wikipedia.org/wiki/Thucydides_Trap

andsoitis 3 hours ago | parent [-]

Thanks for the list of examples.

It is odd to see a single country being repeated at different times as the "incumbent" power.

The latest example in the list shows "UK and France" as incumbent power and Germany as rising for the 1990s - present.

The US is only listed for the 1940s - 1980s as incumbent, with Japan and Soviet Union as rising.

detourdog 4 hours ago | parent | prev | next [-]

President Xi of China mentioned it when the US President visited him in May.

https://www.hks.harvard.edu/faculty-research/policy-topics/i...

igorkraw 2 hours ago | parent | next [-]

The how of the reference seems important, it's not like he brought it up first apparently

>Xi has referenced Allison’s term before. In a speech in Seattle in 2015, Xi said, “There is no such thing as the so-called Thucydides Trap.” And in an October 2023 meeting with Senate Majority Leader Chuck Schumer, Xi said, “The ‘Thucydides’ Trap’ is not inevitable, and Planet Earth is vast enough to accommodate the respective development and common prosperity of China and the United States.

detourdog 22 minutes ago | parent [-]

Do you think Xi's comments are specifically that war is imminent?

nubg 4 hours ago | parent | prev [-]

utterly repulsive ai slop

detourdog 3 hours ago | parent [-]

Yes, but I liked that the article mentioned how Xi has been saying this for a long time.

I switched the link to Harvard.

ForHackernews 4 hours ago | parent | prev [-]

Rising power challenges the fading imperial hegemony. In this case, CNY displacing USD.

curuinor 4 hours ago | parent | next [-]

CNY displacing USD would entail allowing people outside China to buy really significant quantities of CNY-denominated financial products. This would entail CNY/USD changing so CNY is more expensive, because the default currency for financial products currently existing is USD. Which would slap a corresponding huge price increase with 0 increase in quality to all Chinese export. Which would murder Chinese manufacturing export. Which would entail laying off some grand proportion of an industry that employs 5% of the _human_ race. Which is why they're not gonna do that.

pocksuppet 3 hours ago | parent | next [-]

Same thing that happened to USD, right? Once the USA stopped having to actually manufacture things to get money, it stopped actually manufacturing things.

WarmWash 2 hours ago | parent | prev [-]

China is step by step learning that communism actually sucks and doesn't work.

Unless you can have a super intelligence that can monitor every aspect of everything all the time to ensure optimal decisions. Hmmmm...

ImHereToVote 4 hours ago | parent | prev | next [-]

I don't think China wants to make the CNY the reserve currency because it would decimate China as a manufacturing hub. They prefer China to be Jakob to the U.S. being Esau. The red lentil soup can be quite bitter.

baxtr 4 hours ago | parent | prev | next [-]

Is China still rising or already in decline?

Markoff 3 hours ago | parent | next [-]

their yough unemployment rate sure is rising, it sure ain't great to be young Chinese looking for job now

https://www.nytimes.com/2023/08/15/business/china-youth-unem...

https://www.nippon.com/en/in-depth/d01203/

https://www.reddit.com/r/dataisbeautiful/comments/1pedov5/oc...

also there are salary paycuts for people who already have work, my Chinese clients tried this, but not gonna accept it, I will rather lose such client than lower my rate, I am losing money by not increasing my rates over many years already despite huge EU cummulative inflation and EU salaries growth

by my experience visiting country after almost 10 years last year just by looking at salaries, restaurant prices, real estate prices/rent their economy seems to be stagnating in last 10 years, restaurant meal cost pretty much same as 10 years ago, same goes for entry level salaries like waitress, cook and other you can see in street

they are getting stronger overall, though doesn't seem like middle class is benefiting from it, my CN family bought apartment many years ago and they would have problem to sell it for same price, let alone make any profit on it

WarmWash 2 hours ago | parent [-]

Yeah, but have you seen their EVs that cost $30,000 and have fold out kitchens and a movie theater in the rear?

hvb2 an hour ago | parent [-]

I'm not sure that's relevant if you aren't paid so might self to feed yourself.

Also 30k USD is a lot of money everywhere except for in the US

ForHackernews 4 hours ago | parent | prev [-]

Relative to the US or Europe? I think you know the answer to that.

edgyquant 4 hours ago | parent | next [-]

Relative to the US it’s not a straightforward answer but China is definitely not rising in the way it was a decade ago and has been outpaced by the us

myrmidon 4 hours ago | parent [-]

China has a massive demographic problem in the near future (after 2040ish), and it is extremely unlikely (IMO) that it is going to catch up/surpass the US in GDP per capita within the next decades.

But its relative GDP growth has been higher than the US for decades, is higher stil and is probably going to stay higher for years:

https://ourworldindata.org/grapher/real-gdp-growth?country=U...

edgyquant 2 hours ago | parent [-]

But the gap between the us and China in terms of GDP has widened in recent years making it look like China will never surpass the us

myrmidon 6 minutes ago | parent [-]

Never surpass in what exactly?

If you look at absolute numbers (https://ourworldindata.org/grapher/gdp-worldbank-constant-us...), it seems likely that China will surpass the US economy pretty soon (they're a lot more people though, so per-capita is much worse).

Personally I think its most likely that chinese GDP will be larger than US GDP within 2035, but that the median citizen is NOT going to catch up to US standards in the next 50 years.

And their whole society will run into the exact same problems that many western countries are dealing with already (increasing fraction of retirees), so I'd be very careful with extrapolating their currently superior growth rate past 2040 or so.

tokai 4 hours ago | parent | prev [-]

The answer is really not a clear cut as you assume any longer.

quickthrowman 4 hours ago | parent | prev [-]

I’ll believe it when I see it, there’s a spread between onshore and offshore yuan exchange rates due to currency manipulation. It becomes harder to manipulate a currency as more of it is created, and AFAIK countries are not loading up on Chinese govt debt, but I may just be unaware?

The USD hegemony isn’t because of oil, it’s because everyone wants dollar-denominated assets. Treasury bonds, US real estate, US equities, etc. Possibly Chinese exports could soak up some of the yuan demand?