> They're also a wealthy, densely packed, small country that had foresight and has been consistently building forever now. And they've done most of it with pri

> They're also a wealthy, densely packed, small country that had foresight and has been consistently building forever now. And they've done most of it with primitive technology compared to today's options. I agree though: it's a political decision, the engineering and building isn't the problem, and, I believe, neither is the budget. If your 16th century farming community could afford to build dikes, so can the 21st century techo-dystopian mega-cities.