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It’s an unfortunately foggy morning in Shanghai, but from where I am, the crappy weather only adds to the feeling of standing in the middle of clouds. I’m towering almost half a kilometer over the rest of the city, on the highest man-made observation deck in the world, the 100th floor of the Shanghai World Financial Centre, which opened just two months ago. With cumulus on my right, stratus on my left and a mirrored ceiling reflecting their formations back at me—I feel myself getting dizzy. Have I developed a fear of heights, or is vertigo inevitable when you’re this far up?