The Only Non-Totalitarian Solution to Resource Scarcity: Decentralized DegrowthThe fantasy is that everything will soon be super-abundant and cheap again because creating money out of thin air creates demand out of thin air and supply will always magically appear if there is demand. The reality is super-abundant and cheap is gone for good. Demand doesn't create new supply by magic; if the supply is gone, then demand has no magical power to conjure supply out of thin air.
The other fantasy is that there will always be a cheap substitute for whatever's been depleted. If the oil is depleted in one place, there's still plenty to extract in Timbukthree. Or we'll replace oil with electricity generated by high-tech paint on our roofs, and we'll replace all those thousands of giant airliners using jet fuel with little, slow electric aircraft--nothing will change except we'll continue to have more of everything.
The reality is the current global economy is a Landfill Economy that glorifies waste as growth. The faster shoddy goods fail and are taken to the Landfill and replaced with a new one, the higher our "growth." The greater the waste, friction and fraud, the greater the "growth."
Sorry, but thid guy knows nothing about economics.
Let me also point out that you can indeed have infinite growth on a finite planet. It sounds counter intuitive, but groth is just, at it's core, effectiveness, and we do constantly make things more effective, this will not stop, hence growth will not stop, it might slow down at some point, but it will never stop (as long as we don't become significantly dumber as a species).