Superconductivity
A phenomenon occurring at very low temperatures (around 4 Kelvin) where electrons settle into a macroscopic quantum state, allowing current to flow indefinitely without dissipation, forming 'supercurrents'.
Videos Mentioning Superconductivity

Jeffrey Shainline: Neuromorphic Computing and Optoelectronic Intelligence | Lex Fridman Podcast #225
Lex Fridman
A phenomenon occurring at very low temperatures (around 4 Kelvin) where electrons settle into a macroscopic quantum state, allowing current to flow indefinitely without dissipation, forming 'supercurrents'.

Douglas Lenat: Cyc and the Quest to Solve Common Sense Reasoning in AI | Lex Fridman Podcast #221
Lex Fridman
A phenomenon where electrical resistance drops to zero at low temperatures, discussed as an example of scientific discovery that initially defied established paradigms.

Judea Pearl: Causal Reasoning, Counterfactuals, and the Path to AGI | Lex Fridman Podcast #56
Lex Fridman
A phenomenon in physics where a material offers zero electrical resistance below a certain critical temperature, a topic of Judea Pearl's PhD thesis.