Which limits are you thinking of? We’re past the carrying capacity on certain fronts, but that was never a “will collapse” thing as much as a “we’re going into debt” thing, and I think they were first calculated after we had passed them.
There’s some ways in which we can stretch the Earth, but there’s some that are set in stone. Energy budget comes to mind; we only get so much sunlight, and even if we start doing fusion to sidestep the sun we only have so much ability to radiate waste heat. Energy use on Earth will have to plateau within the next few centuries.
Which limits are you thinking of? We’re past the carrying capacity on certain fronts, but that was never a “will collapse” thing as much as a “we’re going into debt” thing, and I think they were first calculated after we had passed them.
There’s some ways in which we can stretch the Earth, but there’s some that are set in stone. Energy budget comes to mind; we only get so much sunlight, and even if we start doing fusion to sidestep the sun we only have so much ability to radiate waste heat. Energy use on Earth will have to plateau within the next few centuries.
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Yeah, they also thought birth rate would stay steady. It’s dropped like a rock instead.
It is true that agriculture got better in that time. It probably will again. There’s no hard limit being suggested here, though.