Whats the definition of long-term? A lot of mining towns became ghost towns (i.e. Cerro Gordo [1]) and in those situations even the merchants are out of busine

Whats the definition of long-term? A lot of mining towns became ghost towns (i.e. Cerro Gordo [1]) and in those situations even the merchants are out of business. It's not like we stopped mining silver though; the prospectors moved on to other areas. Like if TPUs replace GPUs then Nvidia is looking at a decrease in growth. The horse shoe sellers go out of business just as fast as the horse shoe maker does. [1]: https://en.wikipedia.org/wiki/Cerro_Gordo_Mines https://en.wikipedia.org/wiki/Cerro_Gordo_Mines