Here I shall try to speak about the most important problem of
the modern natural science, the problem which is undoubtedly, of
more importance than the discovery of Blacks Holes, creation of
Grand Unification Theory or Artificial Intelligence. Moreover, this
problem seems to be not only more profound and complicated but also
much more urgent (see also Lipunov 
).
So, I want to say that in modern natural science there is an
experimental fact not understood and paradoxical, being in
crying contradiction with every modern orthodox picture of the
world., this is the absence of Supercivilizations, or
``Silence of the Universe''. Naturally, this fact has been discovered
and realized previously. With the utmost acuteness it was realized in
a post-mortal paper by I.S. Shklovskii 
which, actually,
appeared to be "the voice crying in a desert" (and seems to be still
unknown in the West at all).