It is a privilege to contribute to this volume honouring David Bohm. There is no need to enumerate his basic contributions to modern theoretical physics; these are well known to the scientific community. What IS however unique about David Bohm is his deep involvement in epistemological problems. In this perspective, there is probably no single concept more fundamental than time in its connection with cosmology. As Karl Popper beautifully writes 1: 'There is at least one philosophic problem in which all thinking men are interested. It is the problem of cosmology: the problem of understanding the world - including ourselves, and our knowledge, as part of the world.'