There are many cities where building a 200m+ building is impractical, ridiculous, or totally out of character, yet these cities are highly dense, and by any def

There are many cities where building a 200m+ building is impractical, ridiculous, or totally out of character, yet these cities are highly dense, and by any definition, "great" cities. I'm really confused as to why they'd pick this particular metric. Later on in the article they talk about density patterns which is a much better predictor of health.