Assorted Links Sunday

US adults' social platform use, by demographic group:

A very nice explanation of the "floor space index" also known as the "floor area ratio":

Why skyscrapers are so short:

There’s a pattern that we frequently see in the development of a new technology. Initially, the practical functionality is limited by the technology itself – what’s built and used is close to the limit of what the technology is physically capable of doing. As the technology develops and its capabilities improve, there’s a divergence between what a technology can physically do and what it can economically do, and you begin to see commercialized versions that have lower performance but are more affordable. Then, as people begin to build within this envelope of economic possibility, capability tends to get further constrained by legal restrictions, especially if the new technology has any (real or perceived) negative externalities.

Inside Nebraska’s surprisingly effective COVID strategy: Nebraska’s obsession with government efficiency gave it an advantage when the virus struck.

“If you’re getting a W-2, you’re a sucker”: There are many differences between the rich and the rest of us, but one of the most consequential for your taxes is whether most of your income comes from wages.