An important criterion is missing: the quality of human interaction. How nice and attentive your average vendors, service providers, random strangers you ask f

An important criterion is missing: the quality of human interaction. How nice and attentive your average vendors, service providers, random strangers you ask for directions are do affect your experience in myriad ways. In fact, it may inversely correlate with spatial density. The optimal density is likely not the highest possible, as the report implies. Hong Kong is notorious for its stratospheric real estate prices. This likely contributes to the rush way average citizens, esp. lower-income service personnel, e.g. 7-11 employees, spend their time--they need to make ends meet or to fulfill strict quota set by business owners who need to pay those high rents.