Japan is preparing to construct a groundbreaking supercomputer that will be the successor to Japan’s Fugaku supercomputer, projected to be 1,000 times faster than today’s most advanced machines. Expected to cost more than $750 million and set to go live by 2030, this “zeta-class” supercomputer will mark a new era in computing power. But experts have warned that it could require as much energy as 21 nuclear power plants.