The number of people is /not/ remotely the limit on abundance or efficiency. Do you know when Holocene extinction occured? During human population bottlenecks f

The number of people is /not/ remotely the limit on abundance or efficiency. Do you know when Holocene extinction occured? During human population bottlenecks from localized depletion of food sources. No overpopulation - we were endangered and bear the scars of it genetically to this day. No technological efficiency there to blame. And no mythical elyium values - they didn't have that priveledge. Any uncontacted tribe that managed to live hunter gatherer by definition was extremely lucky at the time. They had an environment capable of supporting them stationary and no rivals as threats. If they were nomadic over any significant area they would have been known and exposed to human networks. Efficiency is our only way out of it. Farm acreage shrinking isn't from shortage of housing but an abundance of productivity.