GDP consist more than just software/IT/biotech/aerospace and private consumer spending.
The composition of GDP between US and China are fundamentally diffferent, so just improving technology and access to affordable resource will not close the GDP per capita gap.
Most importantly, 20% of US GDP is healthcare expenditure, the highest healthcare-spending to GDP ratio in the world. (12% in Germany/France, and only 7% in China). This is due to US lacking a single payor healthcare system, which promotes bloated wasteful spending (thus artificially inflates GDP). US has thousands of individual private health insurers which increases administrative and billing overhead. Medicare is allowed for 65 and older and disability, but is prohibited to even negotiate drug prices, which artificially increases biotech/pharma profits and healthcare spending in general. China cannot replicate this because it has a leaner, efficient single payor healthcare system. China squeezes pharma/biotech hard for bargaining power, which lowers biotech/pharma profits. Fundamentally, China cuts excess spending, where as US healthcare system promotes excessive and wasteful spending, which again, artificially increases GDP.
Then there's the financial sector, also making up 20% of the US GDP. This isn't just about banking; it's about the creation of complex financial products, derivatives, and speculative instruments that can puff up the GDP figures. While these can boost numbers in the short term, they also bring volatility and risk, as we all saw in 2008 financial crisis. China, on the other hand, has a tighter leash on its financial sector, focusing more on stability and less on high-risk financial acrobatics, as seen with their stance on speculative practices and moves against potential monopolies like Ant Financial by Jack Ma.
So, when we talk about the world's carrying capacity and resource consumption, it's not just about who's bidding for what. It's also about understanding the nuts and bolts of each country's GDP. The US's numbers are significantly swayed by sectors where costs are more a reflection of systemic inefficiencies or complex financial products than actual economic health. Simply equating the GDP per capita of the US and China, without considering these structural nuances, doesn't quite hit the mark. It's not just about the resources; it's about how each country's system inflates or manages their slice of the economic pie.
It's good that you have moved on from the world's carrying capacity in terms of resources. Your next argument is now that the US GDP is inflated by the healthcare and financial sector, and because China is so efficient and competent, it will not inflate its GDP with healthcare and finance, and thus it can't reach US GDP per capita.
First, let's tackle healthcare. The goal of the healthcare sector is to keep people healthy. If this goal can be achieved with less money being spent, then that's a good thing. Now you are saying the US is spending more on healthcare, and thus its GDP is being inflated by that.
But here is the problem: if US people and the government are spending more on healthcare, that means that money is gone. But for China, since they are spending less on healthcare, they have more money to spend on other productive sectors. Chinese consumers now have more money to spend on household items, a bigger house, a better car, maybe an extra vacation. All of these activities will boost GDP.
Or maybe they save that money and put it away for a new investment in stocks or bonds. That means companies have more money to spend on their investments, maybe boosting innovation or boosting market share in the process, thus gaining even more income and boosting GDP.
Just because a non-productive sector has less money to spend doesn't mean your GDP will be less. Instead, you saved that money and put it into other more productive sectors.
Now let's tackle finance. You yourself said inflating GDP with derivatives is not a good thing and is likely a bubble, and you gave an example of 2008 when that bubble burst. Well, if the US finance sector is full of bubbles, then that will eventually burst, and many good businesses and people will go bankrupt. This will likely lead to a big fall in overall consumption and thus US GDP will fall in a major way.
There is no perpetual bubble; all bubbles are by nature bound to collapse. If China can avoid such bubbles, then its predictable economic performance will likely boost people's confidence. They will invest more in the economy. They will borrow more. Overall, this will boost China's GDP more than the US.
So, in conclusion, inflated GDP by the US through non-productive sectors will eventually lead to either a recession and GDP collapse or will lead to an inefficient economy, which again will lead to less economic growth. China, by avoiding that, will boost its GDP even more. The likely result of this will be China's GDP per capita will be even bigger than the US.
You are actually giving us faith that China can actually be richer than US in the future!!