Everywhere you look there's building going on, trying to catch up the mass influx of people coming to Hong Kong.
To give you an idea:
Slovenia - 100 people per sq km on 20.270 sq km surface area.
UK - 257 people per sq km on 243.600 sq km surface area.
Hong Kong - 6783 people per sq km on 1092 sq km area!
There are way too many of us!