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I made this comment in response to BOOM's post:

I want to respond to a claim you made in your most recent post. You posit, "Thus, the entire World Population of 8 Billion can be housed in Alaska at the same density of London." That statement is not entirely correct. It must be kept in mind that the size of land occupied by city dwellers is much larger than their respective share of the city. Food, clothing, goods, and resources consumed by people are produced using land away from where they live, scattered all around the world. People are connected to such land by energy, or fuel, that allows stuff to be transported to their proximity in the city. Thus, the issue of population size is not a question of available land, but, primarily, of energy available at EROI at a level that allows the just-in-time system to function. Whatever the world population crammed into Alaska would produce would have to be able to pay for the energy needed to feed and clothe them, which is hardly possible.

That brings us to– for lack of a better word - fossil fuels, the other issue you mention. What matters is not their origin but whether they're finite and if not, at what rate they replenish. It's been the discovery of coal, oil, and gas and the subsequent development of industrial technologies that have permitted humankind to improve their living standard tremendously during the past few centuries, including an unprecedented increase in population size. If the conventional theory is correct, and fossil fuels are finite, there is no question that the world's population housed in Alaska would be dead within a matter of weeks. If the abiotic theory is correct, and fossil fuels are replenished, the question is at what rate. For extraction would have to be at a maximum at that rate for the use of fossils to be sustainable. As far as I've been able to find, the abiotic theory appears to be wishful thinking; I'm not aware of any hard data on the replenishment rate, if that's how it works.

There are various other issues, such as that fossil fuels are also the source of fertilizer and other materials, and the fact that the growing human population is crowding out other biological species, which disrupts its natural habitat, but energy is the key issue.

As far as innovation and the allusion that humans will be able to solve the predicament of dwindling fossil fuels by substituting them with another source of energy, there is nothing in sight at the moment that would allow the world to go on as is if fossil fuels are no longer available or EROI goes up. Renewables, nuclear, hydrogen either do not provide the necessary energy density or are simply not feasible due to fact that include the virtual impossibility to mine and process enough materials for electric applications, even if energy could be captured in theory. A sufficient buffer for wind/solar applications is another problem. Excellent work on this subject, including detailed calculations, has been done by Simon Michaux (https://www.simonmichaux.com/). Will humans be able to find a solution? Maybe yes, maybe no. With the current knowledge, the only possible course is to slow down and downsize. Assuming that the industrial civilization will go on forever is fallacious.

Incidentally, the climate change, global warming/boiling, all sorts of green deals, and all the other stuff are pure bullshit. There might be some truth in these claims, but they reflect the utter inability of the so-called elites to understand and tackle the issues in question.

Anyway, it would be most judicious on humankind's part to consider the end of the industrial civilization a real possibility, and work toward a sustainable and as prosperous as possible existence in the post-industrial era, when the kind of manufacturing we have now is no longer available. For starters, people should preserve knowledge gained thus far by printing durable books, as opposed to converting everything into digital form. Likewise, technologies should be devised that would allow making things with minimum energy. Ditto agriculture.

Reportedly, what can be observed in the behavior of the human population in the past few hundred years is a standard biological phenomenon that occurs in nature. When a species discovers an abundant source of sustenance – in our case fossil fuels – it overconsumes the stuff and goes into a population overshoot. The more of them there are, the faster the resource is consumed and eventually the species starves to death and destroys its habitat in the process. If you take a sober look at the human civilization, that's pretty much exactly what's happening.

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