A few years ago, Mutai was working odd jobs on farms in rural Kenya. Now he is a cryptocurrency miner in Nairobi. Mutai began researching cryptocurrencies last year. He says he was curious about what was making these alternative coins drive. There were already many Bitcoin miners. Instead, Mutai started mining Ethereum, a similar but less well-known cryptocurrency. For him, internet-based currencies are revolutionary. They open up a world of finance that might not have been accessible for a self-taught tech-obsessed kid from Kenya with no college degree. It is also a nefarious world of online hucksters and frauds. Mutai takes the chance. Is the gamble worth it?