Researchers created quantum entanglement between two quantum systems at a 12,5 km distance. The ability to exchange information between two memory systems is the base requirement for communication. When two persons are talking to each other they are exchanging information. Or otherwise, we can say that their brains exchange information. And the human brain is one version of the memory system. When we are discussing, we share information. Sharing information requires certain protocols. And one of those protocols is biz talk. Another system that can be human or computer asks permission to use another system's databases. When an elder person gives pieces of advice the situation is the same as when a server offers a client access to its databases. In both cases, systems offer a path to information, stored in their memories. So when another person offers pieces of advice that means the person offers information to another person. During that process, we are transferring information th