Unlimited growth by all practical means is probably not a problem, even with only this planet. Half of the nutrients eaten worldwide by people right now are gro

Unlimited growth by all practical means is probably not a problem, even with only this planet. Half of the nutrients eaten worldwide by people right now are grown with artificial fertiliser, which is made by literally sucking nitrogen out of air. Humans are making great use of resources that are utterly worthless for all other living beings, such as oil, natural gas, uranium and more. What will be the next toxic waste product that humans will harness for productive goals? And even if there is no next such resource, economic growth can be achieved using less resources by increasing efficiency. So even if humanity decided to stop increasing the resource usage right now, we would still continue to see almost limitless economic growth just by smarter ways of using the resources.