Is the Big Rip unreachable?
  I investigate the repercussions of particle production when the Universe is
dominated by a hypothetical phantom substance. I show that backreaction due to
particle production prevents the density from shooting to infinity at a Big
Rip, but instead forces it to stabilise at a large constant value. Afterwards
there is a period of de-Sitter inflation. I speculate that this might lead to a
cyclic Universe.
