It's worked for a very long time for aircraft.
China has been pushing to build its own aircraft for >23 years. It took 14 years for COMAC to get its first regional jet flying commercial flights on a Chinese airline, and 21 years to get a narrow-body plane flying a commercial flight on a Chinese airline.
If for no technical reasons and purely political, COMAC may still be decades away from being able to fly to most of the world.
Likewise, in ~5 years, China may be able to build Chips that are as good as Nvidia after Nvidia's 90% profit margin - i.e. they are 1/10th as good for the price - but since they can buy them for cost - they're they same price for performance and good enough.
If for purely political reasons, China may never be able to export these chips to most of the world - which limits their scale - which makes it harder to make them cost effective compared to Western chips.
Note that this happens at the same time the US is breaking up its own alliances, so as of this writing, there's no such thing as certainty about politics.
This isn't happening. The US is driving a harder bargain with our allies. No one serious thinks anyone is walking away from alliances with the US.
The question of “can we trust the American government” is now being asked more often. Existing alliances and new potential alliances face that question, whether or not you personally believe that they should trust America.
Even if no concrete actions are being performed with asking that question, the fact that question is even being asked is a major drop from where we were.
The EU is pumping money into what they call "digital sovereignty" left and right. Germany just cancelled their Microsoft subscriptions and replaced them with self-funded Open Source for Schleswig-Holstein, which is roughly 5% of all government employees. That's one hell of a trial run. Germany's "OpenDesk" and France’s "La Suite numérique" even made into the new "Franco-German Economic Agenda 2025", which self-describes as "bilateral coordination to full swing for a more sovereign Europe".
I mean, the current administration has repeatedly threatened to invade militarily two of its allies. Also, it has repeatedly threatened to not honor military agreements with most others, and both the current president and vice-president have insulted the leaders of several allied countries to their face.
Oh, and if that weren't sufficient, the current admin has unilaterally broken all trade treaties (alongside most intellectual property treaties) it held with its commercial partners.
The EU is slow at it, but it's no accident that everybody is doing their best to move away from US tech and military dependencies.
While you type this, the rest of the world is already using Chinese cars, something that was unthinkable a year or two ago.
The US has closed the market off from this for its auto industry to survive.
[1] https://www.whitehouse.gov/fact-sheets/2025/03/fact-sheet-pr...
This was correct a few years years ago.
It's actually the opposite nowadays, most of these cars are safer than the typical 2.5L 4 cylinder American car. Both the EU and Australia has been completely flooded with these cars, to an extent that you'd have to see it to believe it.
And both those planes have a strong dependency on "western" components that won't be overcome before the 2030s, and even then, they're around a generation behind.
CFM LEAP, latest short-to-medium-haul airliner engine from CFM (GE+Safran) is from 2013 (first run). Its predecessor, CFM56, is from 1974 (first run) and saw a few evolutions, including as late as 2009.
If you compromise on safety, you get something that is still suitable for the military. If you don't care about economics you can participate in the space race.
But for commercial air travel, you don't have the luxury to pick just two; a competitive commercial airliner has to perform exceedingly well in all three regards.
If you're an airline using expensive aircraft you will go bankrupt. If your aircraft is too slow then your competitors will eat your lunch, and if you have a reputation of being unsafe then your customers will run away or the government will pull the plug (likely both).
IMHO affordable commercial air travel is one of the biggest marvels of 20th century engineering.
This doesn't matter so much for military purposes: they can easily eat the cost of a higher maintenance and replacement schedule on a smaller number of military jets with fewer hours on them.
This gives them more iteration cycles, speeding their building up of experience. They're catching up. Industrial espionage will help them along too, but not as much as the experience from engineering their own designs.
See what I did there?
