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Hmm, I would love for Sabine Hossenfelder [0] to take me through the numbers that claim my country needs 3.6 earths if we were to invite everyone to our lifestyle.

She did a very nice job changing my mind about nuclear power: [1]

[0]: https://backreaction.blogspot.com/p/about.html

[1]: https://backreaction.blogspot.com/2022/04/is-nuclear-power-g...

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One of the numbers that is probably factored in is how much less efficient the food production would be if we adopted the food policy of one single country for the entire world.

While we currently use about ~50% of habitable land for food production, if we all adopted the diet in Bangladesh we would only need about 14%. If we all had the diet as in New Zealand we would need 190%. The dutch fall at 100% in the data that they published: https://ourworldindata.org/agricultural-land-by-global-diets

Not exactly the 3.6 worlds listed in the link above, but diet is only one small part...

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