Re: How would you solve the growing strain on natural resources?
It might take ten thousand years to reach that population. I put it out there to say transformative technological change could create universal abundance on a scale we can hardly dream of today.
Hong Kong has a population density of 6500 people per square kilometer. If we work out how to build floating cities at sea with that density, 50 billion people would only need 2% of the world ocean, with a further 5% of the ocean for industrial agriculture, transport, etc.
Ten square kilometre floating cities with buildings a kilometre high could float around the North Pacific Current between America and Asia. Almost all of the world ocean, and most of the land, could then be devoted to biodiversity, cultural heritage, etc.
It is all about fostering values that look to long term growth, stability and respect. Pressure on natural resources is only due to poor governance. Once we get started on innovative methods, current imagined constraints could evaporate.