The dream of superconductors

The dream of having electricity without energy expenditure is not viable today, but it is getting closer and closer to reality. This is what the physicist of the CFM Ion Errea Lope works on, who has told us what are the most productive strategies to achieve it today, in what type of material it could be and under what conditions. That is, to what extent there is hope of obtaining materials that conduct electricity without resistance at room temperature.