The Economics of Pragmatism
We don't have enough land, above and below, to build longkangs to prevent floods. Our land are about the most expensive assets in the world. We need them to generate wealth than to collect rain water. We may not have land for longkangs, but sure we have plenty of lands to build prime properties for big profits. And sure we have plenty of land to take in another 5 million people. The main consideration is to squeeze as much value as we can from the plentiful or limited land, depending on how one wants to view it, so that the developers can laugh all the way to the banks. A little flooding is acceptable. That we can live with, but no land shall be wasted. It is all about economics and maximisation of returns. I hope no property developers reading this seriously think that they can build properties without having to build longkangs. Shouldn't the two be part and parcel of developing infrastructure? The more buildings and structures are built, the more people living on them, the need to have more longkangs and sewerage pipes. Economics and profits may be important, but the longkangs are complimentary to the existence of all the infrastructure and cannot be dispensed with. You can have your buildings, but you must built a network of longkangs to make the place liveable. Like they say, you can't have your cake and eat it as well.