By John Billingham and Rudolf Pešek (Eds.)

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In this connection, there arises the question of the relationship between the length of development of civilizations and the finite or infinite number of fundamental natural laws that are still unknown. If we are approaching a state in which all important laws are known, only quantitative development is possible in the future. In this we can also see the possible destruction of mankind due to boredom (degeneration, loss of interest). However, this problem does not exist, at least for the time being.

And a clarification of the several sources of infrared radiation around the center whose temperature is close to room temperature (Ricke and Low, 1973; Becklin and Neugebauer, 1975), is of exceptional interest. We need to study the region of the center (Eyles, Skinner, Willmore, and Rosenberg, 1975) which was resolved at the beginning of 1975, since we can reckon with a technology and with safety measures that exceed immeasurably our present day capabilities. But are we not in danger of losing our common sense when we attribute such content to actually observed astrophysical phenomena?

The purpose of this article is to attempt a formulation and critical analysis of the basic concepts and research strategies proposed by various scientists. R. ) are currently conducting a search for radio signals from remote parts of the Universe in accordance with recommendations of the joint Soviet-American CETI Conference (Sagan (1973)). A program for such research has been elaborated in the USSR Academy of Sciences (CETI (1975)). The results of some of the latest research by Kardashev (1977), Dixon (1977) and Shklovskii (1976) are still discouraging.

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