Probably not because that 30% is an average of different resources.
For example. Let’s say you have two resources:
A - 10% of the current production of A is enough for the current pops
B - 50% of the current production of B is enough for the current pops
Both average to 30%. If you multiply the population by 3, you still have a surplus of A, but now there isn’t enough B.
Another concern is that increasing the population so much would force unsustainable approaches to resource extraction. In other words: 30 billion people living fine and dandy for a generation or two, and then their descendants living in a hellhole.
So does that mean the maximum population of our planet is about ~30 billion people?
Probably not because that 30% is an average of different resources.
For example. Let’s say you have two resources:
Both average to 30%. If you multiply the population by 3, you still have a surplus of A, but now there isn’t enough B.
Another concern is that increasing the population so much would force unsustainable approaches to resource extraction. In other words: 30 billion people living fine and dandy for a generation or two, and then their descendants living in a hellhole.