From children’s books and streets of the future (see yesterday’s post) to the distant future of energy. especially zero-point energy and metalic hydrogen energy storage and transmission. Both feature on my table of distruptive technologies (17 out of 100 entries are energy related). If you don’t know about these they are very much set in the sci-fi fringe of current physics, but both could be possible one day. Zero point energy is essentially the idea that the universe is not made of static particles, but is, in fact, a sea of constantly moving waves or fluctuating matter. Metallic hydrogen is when the gas is made to change to a metallic state (physical form). This state has never naturally existed on Earth before, but it has the potential to become a superconductor enabling zero-disipation energy transmission. It could also allow storage using persistent currents in superconducting coils.