> to pay back debt with interest, it is necessary to have economic growth, and financial growth
This toy model ignores defaults and fiscal spending.
Defaults destroy debt in the absence of growth (in the process transferring wealth from creditors to debtors). Fiscal spending crates money with no debt (in the process transferring wealth from savers to borrowers). These counter-currents let the system stay stable while credit flows from savers (via equity) and creditors (via debt) to investments and borrowers.
Leveraged systems have a multitude of steady states in a zero-sum environment. Even more when tastes and preferences change as human tastes and preferences do.
> growth in fossil fuel use are very closely tied
I have debunked this in another comment [1]. Energy intensity of GDP has been falling for decades. The carbon intensity of our economy is falling faster.
>> growth in fossil fuel use are very closely tied
>I have debunked this in another comment [1]. Energy intensity of GDP has been falling for decades. The carbon intensity of our economy is falling faster.
Both can be true, energy intensity of GDP has been falling even worldwide. But GDP and energy consumption is still correlated, i.e. you can plot a nice regression line in this plot:
"Energy intensity of GDP has been falling for decades."
No, it has not. While this is true for the US, she just outsources manufacturing to China. Hence the energy intensive steps are done outside the US. So your comment is true for the US but not for the world economy as a whole.
The first graph there seems to show a decreasing energy intensity since 2011. Is there something I'm not seeing here?
For instance, one source says that energy production in 2019 was 14,715 MToe (million tonnes oil equivalent) or 14.7 E12 koe (kilograms). The graph said energy intensity was 0.110 koe per $2015. That implies a world GDP of over 130 trillion in 2015$. But I thought GDP was around $80 trillion (maybe a bit higher using purchasing power parity).
I'm confused. Is energy intensity decreasing because somebody's using an inflated denominator (PPP dollars)? What's really happening?
This toy model ignores defaults and fiscal spending.
Defaults destroy debt in the absence of growth (in the process transferring wealth from creditors to debtors). Fiscal spending crates money with no debt (in the process transferring wealth from savers to borrowers). These counter-currents let the system stay stable while credit flows from savers (via equity) and creditors (via debt) to investments and borrowers.
Leveraged systems have a multitude of steady states in a zero-sum environment. Even more when tastes and preferences change as human tastes and preferences do.
> growth in fossil fuel use are very closely tied
I have debunked this in another comment [1]. Energy intensity of GDP has been falling for decades. The carbon intensity of our economy is falling faster.
[1] https://news.ycombinator.com/item?id=24979345