Much of this TEDx Talk displays some of the worst habits of TED Talks - I'm a jetsetter and I'm here to tell you mainstream environmental solutions are like so 5 minutes ago because NIMBLE and other buzzwords.
But the concept at the heart of it is interesting - how many rooms in a typical house go unused for days at a time? Here's a test - if you visit a home with a dedicated dining room, check how much dust is on the dining table.
And it's not just rooms. How much does the average bachelor use the oven he's paying to rent? Wouldn't a toaster oven and/or a hot plate save 10 square feet of floor space for a better use, save money, and be more convenient (faster heating)?