> A thin superconductor can carry an almost arbitrary amount of electricity with 0% loss. A picture is worth a thousand words here. https://duckduckgo.com/?q=

> A thin superconductor can carry an almost arbitrary amount of electricity with 0% loss. A picture is worth a thousand words here. https://duckduckgo.com/?q=superconductor+critical+surface&t=fpas&iax=images&ia=images https://duckduckgo.com/?q=superconductor+critical+surface&t=... Superconductors operate within the bounds of their critical surface. The max current depends on the temperature and field density, it's never arbitrary.