Mining bitcoin is increasingly likely to be one of the most dangerous and regulated activities in the digital economy. It began as an early experimental protocol for protecting the Bitcoin network, yet today it is a multibillion-dollar global industry employing advanced technologies, immense data centers, and international supply chains. But as Bitcoin grew older, its mining ecosystem has been faced with the imposing question: How will miners react to changing incentives? Can the industry and the environment coexist? And what will regulation have to do with setting its course forward? To understand where Bitcoin mining is going, one must delve into the technological, economic, and geopolitical trends that will shape its next chapter.