2.1 billion people was the figure for people living between Europe and South East Asia (i.e North and Eastern Africa, the Levant, the Caspian, the Indian Subcontinent and the GCC States). China is of course a different story.
Giorgio Armani once said "Dubai is the new New York. It's the New York of the 21st century" (http://tinyurl.com/aqc63r). It turns out not to be as he thought, but for these 2.1 billion people, a cheap flight away from their cities, Dubai will always have its appeal.