So cryptocurrency is the new Gold Rush. As the story goes, the only people who reliably made money during the original gold rush was the people who sold the spades. What are the "spades" here?
https://www.thestreet.com/story/14190462/1/why-nvidia-and-am...
These and basically anyone supplying them like voltage suppliers (Vicor) or even the more basic materials like silicon wafers (Shin-Etsu Chemical).