這樣做可以促進香港經濟嗎？

Hong Kong will die. Hong Kong lacks of natural resources. Almost all commodities are imported, mainly from the mainland China. If the exchange rate depreciates so drastically, there will be a super inflation. Everything will become very expensive.

不會好. It will led to the inflation problems.

我預先知道就好了。
我會把我的錢財，以 1 對 1計，預先換了人民幣；然後再以 1 對10,000計，轉回港幣，做個發達之人吧！