Many ideas on the 'meaning of life' (assuming death is an ultimate fate of non-existence) presuppose that meaning may still be derived in this world through the actions we make and the impact we leave, our 'legacies.' However, it is perfectly rational and scientifically plausible that not only will we die, but our entire race, world, and indeed the universe itself (at least this incarnation of it, assuming there ARE multiple incarnations) must some day end. Assuming this is in fact true, doesn't the argument that the meaning of life can be derived from our impact on the world seem, if not wholly incorrect, than at least rendered moot by the rather over bearing reality that whatever impact we have is not merely fleeting but permanently erased?