  An interesting consequence of the modern cosmological paradigm is the spatial
infinity of the universe. When coupled with naturalistic understanding of the
origin of life and intelligence, which follows the basic tenets of
astrobiology, and with some fairly incontroversial assumptions in the theory of
observation selection effects, this infinity leads, as Ken Olum has recently
shown, to a paradoxical conclusion. Olum's paradox is related, to the famous
Fermi's paradox in astrobiology and SETI studies. We, hereby, present an
evolutionary argument countering the apparent inconsistency, and show how, in
the framework of a simplified model, deeper picture of the coupling between
histories of intelligent/technological civilizations and astrophysical
evolution of the Galaxy, can be achieved. This strategy has consequences of
importance for both astrobiological studies and philosophy.
