Ultra-fast water-based switch could enable sci-fi technology

https://aip.scitation.org/doi/10.1063/10.0015389

"high concentration solution sodium iodide in water sprayed from nozzle as thin sheet... liquid excited with powerful blue laser... switch functioned at terahertz frequencies... water for short time behaves almost like metal... signal comparable to ones from solid-state material... could someday enable much faster computing, and water-based technology could offer a more environmentally-friendly alternative to rare-earth metals"