Continuing the theme of the microcosm - last year The Nobel Prize in Physics was awarded for the future quantum internet. This is the name of the communication networks through which not just electrons or photons travel, but electrons and photons that preserve their quantum states. The main thing that the transmission of quantum states provides (at least theoretically) is the fundamental impossibility of eavesdropping or changing the message, that is, the absolute security of communication. Quantum entanglement is described as a connection between photons that...