The cement alone would take years to pour. The giant cranes have to have rail to unload onto, and it has to go somewhere. The computers to control it could take

The cement alone would take years to pour. The giant cranes have to have rail to unload onto, and it has to go somewhere. The computers to control it could take years to program. The harbor dredging and shore upgrades could take years. And its not all in parallel. Maybe an off-shore port? With a floating causeway of rail? To do something quickly requires some out-of-the-box thinking.