Earlier quoted context omitted.
I strongly disagree with your comment. Your definition of luxury is narrow and proscriptive. If you're trying to evaluate whether people would accept certain changes in their lifestyle, their definition of luxury is the one that matters. In a tight definition, indoor plumbing is a luxury. As a person whose family vacations used to include an outhouse, I most certainly do not consider that a luxury in my life.
No, my definition of luxury is to take anything that we didn't have in the last 100 years and consider it optional, because that's the kind of world you'll be living in regardless of your opinion on the matter. And then you will realize that it is a luxury to be able to zoom around the planet on a moments notice, to have a multiple 100's of KW personal energy budget per month and so on. These things are not givens an…
Re: Observation-based early-warning signals for a collapse of the Gulf Stream
#441100 years in an arbitrary period. Why not go back 10k years to define a luxury?