"There is no such thing as a "requisite short-term pain to fix the economy". "
It's a pity HN doesn't permit direct messages, because I suspect you'd be hearing from me in less than a year about this bold prediction.
Our economy is an absolute clusterfuck held together only by the absurd productivity modern technology has enabled. We've got zombie companies barely paying their debt load, a economy that is increasingly unable to employ people, supply chains breaking down as the result of decades of very stupid decisions and misallocations, an insane amount of parasitism in our financial services sector which has long since abandoned its proper role as servant of the economy and become its master. We're entering the final phase here where the Fed must raise interest rates to control the inflation that is the result of their already-ill-advised "stimulus" policies to paper over the other failings of the financial sector, and they must not raise interest rates because it will render the government's debt load unsustainable, to say nothing of the private sector's debt load.
We're not merely "not merely growing exponentially", we're contracting quickly and hard. The only reason you don't realize this is that there's this one indicator going up, which is the stock market. On every other indicator the economy is flashing red lights, but the stock market goes up and the Pravda keeps banging the drum about how wonderful the economy is (ignore the increasing shortages, shrinkflation, and unemployment numbers citizen, don't trust your eyes and personal experience trust us) so people who aren't paying attention don't notice.
There's a very, very good reason my post wasn't a triumphalist one about how inevitable it is that China will in fact just go like Japan and the US/West will remain dominant. The truth is the entire world economy is being held together by duct tape and lies. China may be a bit bolder than us in its lies... then again I can't discount the possibility that I'm just underestimating the success with which my own culture is able to lie to me as well. Because lies coevolve with the ones being lied to, the lies in other cultural meme ecosystems are often much easier to discern than the lies told to you in the one you live in.
The fix to this situation requires that a lot of debt that exists now is not going to be serviced, which is to say, defaulted on. Since we've been fixing the problem of "X can't service the debt" by loaning them more money and increasing the debt even more, we've been digging in deeper and deeper and increasing the pain necessary to fix things. We seem to be reaching the point where the situation is going to fix itself regardless of what we do, pushed on by the pandemic response.