Per capita consumption increases, too. It just takes longer.
Most of the rest of your post is just a stretch toward contrariness that I do not understand. For one example, yes, withholding will have to continue roughly as it does now. Obviously. But it doesn’t involve any new administrative infrastructure, so why even bring it up? Tax authorities already know how to do withholding. They would continue withholding, most likely in a government trust fund holding sovereign bonds. Obviously. There is no other way for it to function, and they already know how to do it.
These practical concerns are important, sure. But most of them have obvious answers, and tax administration isn’t relevant to the economic points I was making.
A increase in the capital stock (with technology) will increase economic growth.
An increase in economic growth will lead to a big difference in total output over time.
An increase in total output will lead to higher total consumption, even if consumption as a percentage of GDP is lower.
The result will be higher per capita consumption. A slightly smaller slice of a much bigger pie is still more pie.
This is the story of our civilization.
Investment is production.
There are no other forms of investment in this context. To invest is to produce investment goods. That is literally what it means. This is the economic definition. I was explicit about the definition I was using. I have been, from the beginning, talking about production.
“To simplify: Consumption is what we fritter away today. Investment is our production geared to the future.”
I understand that this is jargon, and that jargon is incredibly annoying in its esoteric pretension. But I need to be precise, which is why I clearly stated that I was talking about tangible goods, the “stock of productive capital”. I am talking about goods that are used to make other goods. I have been talking about components of GDP. GDP is production.
I am talking about long-term trends in growth.
I am not talking about a brief business-cycle fluctuation.
This is a GDP graph.
That is an increase from two trillion to sixteen trillion in real output over more than half a century.
It is so large an increase that most of the business cycle fluctuations, which were very important to people at the time, barely even register. The crashes are extremely painful, but they are mere molehills next to the long-run mountain of economic growth. We’re all interested in the business cycle – I study macro and monetary policy, which is short-run all the way – but growth is a deeper and more fundamental subject.
I can ask you the very same question.
I’m not talking about a temporary business cycle. I’m talking about the long-term trend.
This is a graph of investment, which is a component of GDP.
This is physical investment. It is production. Generally speaking, these are newly produced goods that will help create other goods (with a few exceptions). This is much more volatile than consumption. But still, the trend is upward. This is the capital stock. Investment is the flow of production that increases our stock of physical capital: factories, trucks, containerships, etc etc etc. When we have more physical capital, we have more tools to help us create more stuff.
Sometimes we make a mistake. We build the wrong stuff. Our investment production is misplaced. The system hiccups. Investment is much more volatile than consumption. But then… we recover. This has always been the case. I am not arguing that the future will be different, I’m saying it will be the same.
You are the one who is arguing that the future will be different.
That’s not an inherently indefensible position. But it becomes problematic for your argument if you don’t realize that that’s what you’re arguing.