  I present a brief review of astro-ph/0406099, which argues that there is a
limit on the number of efolds of inflation which are observable in a universe
which undergoes an eternally accelerated expansion in the future. Such an
acceleration can arise from an equation of state p = w \rho, with w < -1/3, and
it implies the existence of event horizons. In some respects the future
acceleration acts as a second period of inflation, and "initial perturbations"
(including signatures of the first inflationary period) are inflated away or
thermalize with the ambient Hawking radiation. Thus the current CMB data may be
looking as far back in the history of the universe as will ever be possible
even in principle, making our era a most opportune time to study cosmology.
