[nicoburns]

> Cake could be (practically) unbounded, since (real) value can increase with actually less consumption of resources.

I don't think this follows. Yes we can make better use of resources, but there's a limit. And given the huge wealth differentials (two or three orders of magnitude) it's feasible and even likely that that limit is lower than the amount of wealth available for redistribution.

[darkerside]

Go back 100 years and the way we have increased our resources would have been completely unimaginable. It would break any possible definition of boundedness that you could have thought of at the time. For all intents and purposes, trying to establish potential limits on economic growth is silly and destructive.