I quote the main title of the article: "Scientists in China managed to exchange a crypto key at a distance of over 1,000 kilometers" Wow! How can they do that? On Monday, 29 June 2020 г., 2:54, jim bell wrote: Cointelegraph: Experts Split on Practical Implications of Quantum Cryptography. [1]https://cointelegraph.com/news/experts-split-on-practical-implications-of-qua ntum-cryptography References 1. https://cointelegraph.com/news/experts-split-on-practical-implications-of-quantum-cryptography