(archive: https://archive.ph/gQiQW but it's not as easy to read)
Takeway: old skyscrapers are easier to convert than new ones, because they tended toward home-like small offices.
A modern skyscraper had to have a hole punched in it.
https://12ft.io/proxy?q=https%3A%2F%2Ffortune.com%2F2023%2F0...
https://12ft.io/proxy?q=https%3A%2F%2Ffortune.com%2F2023%2F0...