I completely agree. There are two aspects here; what do we want out of a society and what we can do with the resources we have (the numbers). We're clearly moving towards the resources, which is why I hedged so much on the topic of cost (and put it last instead of first). I'm just interested in moving the conversation in that direction. I like the idea, but I'm not entirely sold on it--it would be /very/ disruptive.
Ideals aren't convincing. Numbers are.