The other name for this overshoot - where a life form expands to the point that the environment can no longer support them, for whatever reason. Threats to the food supply include plant diseases, climate collapse, pollution, and over-harvesting the soil. We're doing all these.
That's the phase humans are in now, overshoot. But there's no food shortage for now. There's only greed and refusal to feed everyone.
Link: https://senecaeffect.substack.com/p/population-collapse-learning-from

