But when I look at this image, taken from Wikipedia, there doesn't seem to be a ton of gates:
I couldn't find an authoritative number of how many gates it will have, but this website says it will have about 80. This matches what I see in the image above.
By comparison, Ohare and Hartsfield–Jackson have about 190 gates, JFK 130 gates, Schiphol Airport 165.
Why is this? In the Beijing Capitol Airport right now, there are not enough gates, so when I land there, they have us deplane on the tarmac and take a bus to the terminal. Why didn't they build 200 gates if this is to be the largest airport, by passenger volume, in the world?