“We stopped that light pulse inside our atom cloud… All the information in the pulse gets stored in the atoms, and we can park it there for a while.”
Light not always fixed speed, quantum tricks change everything we assume about physics.
These experiments prove we can control and store light like data. Opens door to real quantum networks and computers.
Harvard 2001 article: https://news.harvard.edu/gazette/story/2001/01/researchers-now-able-to-stop-restart-light/
Wikipedia on Lene Hau and papers: https://en.wikipedia.org/wiki/Lene_Hau
Nature 1999 summary: https://www.nature.com/articles/17561