"Tipler makes the point that the science of cosmology has tended to study the past... of spacetime. But most of spacetime lies to the future... Existing cosmology does address the issue of whether the universe will or will not recollapse, but... there has been very little theoretical investigation of the greater part of spacetime. ...[T]he lead-up to the has received far less study than the aftermath of the Big Bang. Tipler sees the omega-point theory as filling that gap. ...[It] deserves to become the prevailing theory of the future of spacetime until and unless it is experimentally (or otherwise) refuted. (Experimental refutation is possible because the existence of an omega point in our future places certain constraints on the condition of the universe today.)"