Scientists searching space for intelligent life already have a difficult job, but some are now saying their task is being made even tougher because of digital currencies like Bitcoin. “We’d like to use the latest GPUs (graphics processing units)… and we can’t get ’em,” Dr. Dan Werthimer told the BBC. The chief scientist of the Search for Extraterrestrial Intelligence, or SETI Project, says the surging demand for GPUs from cryptocurrency miners is leaving the computer chips in short supply. “This is a new problem, it’s only happened on orders we’ve been trying to make in the last couple of months,”...