skyscraper是什么意思？

Imagine a world where building the tallest skyscraper wasn't a race of height, but rather one to collect the most solar energy.

But there is also time for brief diversions onto bizarre ground, such as a discussion of the skyscraper index (which holds that a boom in skyscraper construction is a foolproof sign of an imminent recessio.

Recession closely follows a skyscraper boom.

What does the author say in the chapter on skyscrapers?

The automatic lift is indispensable in skyscrapers

People enjoy living in skyscrapers with a view.

Skyscrapers are a sure sign of a city's prosperity