
Behind the scenes of a traditional bathhouse in Brooklyn, something extraordinary is taking place: The pools, heated to 104 degrees, are not warmed by conventional means but by computers mining for bitcoin.
A profit-seeking drive for energy efficiency has caused bitcoin miners to pop up in unexpected places, such as Jason Goodman's New York bathhouse, where the cost of heating his pools is about the same as it was before he plugged in the bitcoin miners, but now with the bonus of earning bitcoin.