  Consider a proposed model of the universe with $\hbar$ much greater than its
well-known value of $10^{-34} Js$. In this model universe, very large objects
can show quantum behaviors. In a scenario with large extra dimensions, $\hbar$
can attains very large values depending on the dimensionality of spacetime. In
this letter, we show that although conventional thinking indicates that quantum
gravitational effects should manifest themselves only at very small scales, in
actuality quantum gravitational effects can manifest themselves at large scales
too. We use the generalized uncertainty principle with a non-zero minimal
uncertainty in momentum as our primary input to construct a mathematical
framework for our proposal.
