Bitcoins are digital currency that can be mined by computers solving mathematical puzzles. Over the years, they've shot up in value. They might make you rich! Maybe not! It's a Bitcoin rush, and the mining operations are getting large, complex, and bonkers.
As website Hong Wrong points out, the puzzles are getting increasingly difficult. And once 21 million Bitcoins are produced, production will cease. In the past, we've seen impressive digital drilling outfits—and our colleagues at Gizmodo have even noted their environmental impact. However, this set-up in Hong Kong seems to be a step above from your typical Bitcoin mining operations.