  In this paper, conformal invariant gravitation, based on Weyl geometry, is
considered. In addition to the gravitational and matter action integrals, the
interaction between the Weyl vector (entered in Weyl geometry) and the vector,
representing the world line of the independent observer, are introduced. It is
shown that the very existence of such an interaction selects the exponentially
growing scale factor solutions among the cosmological vacuums.
