https://news.ycombinator.com/item?id=10979537
https://news.ycombinator.com/item?id=10247109
https://news.ycombinator.com/item?id=11242655
The tl;dr; is that the costs for the MTA are 10-50x more than every other major city outside the US. The solution is to shut down the MTA, fire all the employees and bar them from ever working for any government agency again, and and replace them with Spanish, or Indians, or Hong Kongians, or French workers, all of whom who seem to be able to build subways at very reasonable prices.