The main question is what for? human technological advancement has always been fueled by a need for a betterment and improvement of life. This seems to be fueld by nothing but a race for fame. Dubai would gain more respect building refugee city to house temporary refugees, why not improve the plight of the 700000 workers who already live in Dubai....I don't know, i'm all for evoltion but this seem like a step backward, building bigger and astonishing things is a sign of imperialism.