  We attempt an answer to the question as to why the evolution of
four-dimensional universe is governed by spacetime curvature but not torsion.
An answer is found if there is an additional compact spacelike dimension with a
warped geometry, with torsion caused by a Kalb-Ramond (KR) antisymmetric tensor
field in the bulk. Starting from a Randall-Sundrum type of warped extra
dimension, and including the inevitable back reaction ensuing from the radius
stabilization mechanism, we show that there is always an extra exponential
suppression of the KR field on the four-dimensional projection that constitutes
our visible universe. The back reaction is found to facilitate the process of
such suppression.
