You know what is impressive? Getting the CSS of any non-trivial app right. /s More on a serious note, for the cost of one of these aircrafts, you can get more

You know what is impressive? Getting the CSS of any non-trivial app right. /s More on a serious note, for the cost of one of these aircrafts, you can get more than 1/10th of their weight in gold. Either gold or the aircrafts are way too expensive, I think it is the latter. I wonder, what the Chengdu J-20 costs...