  The inability to achieve in the present universe, via electromagnetic or
gravitational acceleration, Planck energies for elementary particles is
suggested on the basis of several, some relatively sophisticated, failed
attempts. This failure is essential for schemes were the superplanckian regime
for the energies of elementary particles is ``Unphysical''. The basic
observation is that this failure to achieve superplanckian energies naturally
occurs in our universe of finite age and horizon. It does tie up in a
mysterious fashion these cosmological quantities and elementary physics
parameters such as the masses of the lightest charged fermions.
