Maybe you’re asking the wrong question. Instead, assume that unlimited human population growth is inevitable, and ask what technology or social systems do we need to develop in order to sustain that growth.
What do we need to develop/implement in order to support a population of 10B? 100B? 1T?? At some point, routine space travel needs to come into play. 100x-to-100000x improvement in the efficiency of our energy capture/storage/distribution technology. Terraforming or other world-modification technology. At 10-100 trillion population, interstellar travel and communication. At 100+ trillion population, we need to invent stuff that isn’t even in science fiction yet.
I find all this agonizing over how to keep this tiny ball of mud habitable to be... less than ambitious.
What do we need to develop/implement in order to support a population of 10B? 100B? 1T?? At some point, routine space travel needs to come into play. 100x-to-100000x improvement in the efficiency of our energy capture/storage/distribution technology. Terraforming or other world-modification technology. At 10-100 trillion population, interstellar travel and communication. At 100+ trillion population, we need to invent stuff that isn’t even in science fiction yet.
I find all this agonizing over how to keep this tiny ball of mud habitable to be... less than ambitious.