  After reviewing the relation of entropy to information, I derive the entropy
bound as applied to bounded weakly gravitating systems, and review the bound's
applications to cosmology as well as its extensions to higher dimensions. I
then discuss why black holes behave as 1-D objects when emitting entropy, which
suggests that a black hole swallows information at a rate restricted by the
one-channel information capacity. I discuss fundamental limitations on the
information borne by signal pulses in curved spacetime, from which I verify the
mentioned bound on the rate of information disposal by a black hole.
