title: Some Culturological Aspects of METI Problems with EM Radiation
abstract: Until the beginning of 2020, from 1974 to 2017, sixteen interstellar radio messages were sent to hypothetical extra-terrestrial civilizations. They were sent from different radio telescopes and had different contents. The METI (Messaging Extraterrestrial Intelligence) projects had different concepts, some of which seem highly controversial. Therefore, a short list of criteria for future METI projects is proposed. As an example, we suggest an interstellar message in the radio frequen-cy range of 
journal: Journal of Big History