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 and once they're gone everything that depended on them will be gone as well, because you will prefer to survive.