Proximity is the key to the city’s appeal. being close to others increases opportunities for communication, trade, cooperation, influence. This wealth in the form of variety in and of proximity is one reason why many people want to live in densely built cities. Cities are where it’s happening! to many, being able to take part in this urban diversity at individual levels in Maslow’s hierarchy of needs - let’s call them physical, consumptive, sensual and mental - represents the freedom of the city
—  Uytenhaak, R., 2008. Cities full of space.
Qualities of density
010, ed., Rotterdam.