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by jychang 4029 days ago
It's a mix of both.

A 220 story building would be an engineering marvel, and at the same time not a threat to civil engineers. The bread and butter for engineers are much smaller buildings, which are less technically challenging and acceptable for new construction techniques to be tested out on. You would expect to see a lot more civil engineering resistance on the smaller targets, not the biggest ones. The biggest issue facing such a monster building is the safety of even going that high, considering wind shear, earthquake risks, etc.