> a lot of it is really driven by finding ways to use less natural or labour resources to achieve the same end, meaning more of that end can be achieved for the

> a lot of it is really driven by finding ways to use less natural or labour resources to achieve the same end, meaning more of that end can be achieved for the same cost Yes, and I think that's what's been cushioning the blow in Japan. Eventually the growth in economic activity must end though. It has to be constrained by something in the physical world, be it resources, energy, or build-up of waste products. There's even a limit as to how much waste heat we can produce on Earth. But moving beyond Earth buys a lot more room for growth, and I expect that will eventually happen.