I’ve read about the quantum foam and that--if the energy of it could be exploited--one cubic centimeter of it could boil the Earth’s oceans. I was wondering, could a device that exploits the energy of the quantum foam be theoretically possible (i.e. within the known laws of science)? And would it have any connection to the fictional quantum singularity reactor I’ve heard in sci-fi stories? I’d be grateful for any help from the physics experts here.