You are assuming that people are able to consume 10x more to keep economy going. I would say there's a limit to how much a person is capable to consume. If nothing else you have only 24hrs a day to engage in consuming.
I predict nothing will change until nature forces it, at which point the damage will be irreversible.
A small fraction of people live the high life, but a large fraction has tasted it, and almost everyone has seen it. Effectively no one is going to cut down on their consumption because they’re calculating (correctly, in my opinion) that even if they do, someone else will step in and consume their portion anyway.
There are quite a few billion people looking forward to the convenience of their own vehicle and living in their own detached house and visiting tropical destinations and eating avocados all year. I do not think any leader is going to be able to placate the population by telling them to consume less to maybe help future generations.
No, people won't consume less, as long as they have the same disposable income.
Unless you mean that this will hurt the economy and people will become poorer. In that case yes, they will consume less, but not sure how it can be seen as a nice side effect.
Physical space is not the only issue. Your average US adult consumes more than 100 times than an adult from a developing country. Doubling that number would have disastrous consequences for the planet.
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