[latch]

I don't mean to rant on you, but I do like having this conversation :)

I don't think limiting what we view as sustainable to only the things we want is being reasonable. Sure, there's degrees of sustainability, and we can talk about it in those terms. But, when I look at the world, I no longer believe that we are necessarily entitled to things that we want. Greeks, for example, would like to continue living well beyond their financial means. Should they be allowed to simply because they wish for it?

We have a good system to measure the financial cost of thing. So, at the very least, what you want is something you need to be able to afford (although that plays to the disadvantage of the truly poor). However, there are few checks in places for the social costs, and even fewer for the environmental cost.

So while you want to live in a big house, and you can afford it, do you have a greater social responsibility? Or, put differently (and possibility unfairly), what impact would it have if the considerable number of people who lived in such a dwelling moved to something more sustainable?