> Malthusian theory had been proven wrong

It was never proven wrong, as much as the world changed in a way that invalidated it.

The entire idea was that population growth was an exponential function, whereas agriculture output was a linear function. There would have been famine if nothing had changed, because there is only a certain amount of physical labor a person is capable of doing, which has to be divided between the farming, logistics, and cooking of the food.

What happened was that a century later we got mechanized farming and synthetic fertilizer, decoupling agricultural output from the population. Now a single person can do the work of thousands, and every year that number grows due to technology advances. It is too expensive to set up fully automated farms on the industrial scale, but it is technologically possible.

But none of that invalidates his idea. If you believe that an exponential function and linear function sharing a point at (0,0) must cross each other (subject to other reasonable conditions like not having crossed yet, the linear having a positive finite slope, etc), then it is not logical to reject Malthus. It just no longer applies because we decoupled our food production capacity from the population size.

And because of this, many will starve as a result of oil shocks from the disruption and chaos in the gulf region. We solved the trolley problem by throwing a magic lever that puts five descendants of the original person a ways down the tracks.

You also have to believe that population growth is fully exponential. But in practice it looks more like a logistic curve, and the factors that slow it down are a lot less dramatic than resource starvation or violence.

As long as I keep hearing about the need for reducing meat consumption and supply chain slack (food waste), I'm inclined to think Malthus was right despite the limit turning out to be soil capacity rather than labour capacity.

I mean insofar as the idea is about contemplating those mechanisms in the abstract, sure. But insofar as they were predictive or an attempt at a descriptive characterization of where populations would actually go, clearly it didn't hold. And if it didn't hold because it's true on it's own terms in some abstract sense, so much the worse for its inability to model changes that would prove to be relevant to actual population dynamics.

It's also not just that we accommodated explosive populations but that eventually birth rates really did simply start slowing down for discernible reasons that future models were capable of integrating. Even if we continue to have technology that would give us the capacity to accommodate future increases in population, those increases are no longer happening.

I mean, by proven wrong that's what I mean. I'm not talking about the theoretical mathematics but the real world application of theory in which case, yes, Malthus was proven wrong.

[dead]