I do not know what to make of this… but it sure made me laugh.

According to string theory, spacetime is more extensive than people ordinarily experience. Beyond the customary three dimensions of space and one dimension of time, there are six or seven additional dimensions, accommodating the complex vibrations of miniscule strings. “The strings’ vibrations give rise to matter, but that’s beside the point,” says Mr. Keats. “The important thing is that real estate in cities from San Francisco to New York is selling at a premium, unaffordable to many, and here are half a dozen or more extra dimensions of space, just going to waste.”