The thing we see though is that demand grows to fill most of the new supply. And many of he advanced in agriculture have only increased energy intensity.
Not always. There's only so much food people can consume, and richer countries are producing less children than poor ones are, so there's an asymptote to a lot of consumption.
> richer countries are producing less children than poor ones are, so there's an asymptote to a lot of consumption
The theory of evolution guarantees that no asymptote based on this mechanism can persist over time. Populations that voluntarily extinguish themselves are replaced by other populations that don't.
