Space-Time and the Community of Beings: Some Cosmological Speculations

SPACE-TIME AND THE COMMUNITY OF BEINGS: SOME COSMOLOGICAL SPECULATIONS INTRODUCTION XERT EINSTEIN, in his essay "Relativity and the Problem of Space," makes several interesting comments on the implications of relativity theory for the Newtonian concepts of absolute space and time. Among these are the following: Since the special theory of relativity revealed the physical equivalence of all inertial systems, it proved the untenability of the hypothesis of an aether at rest. It was therefore necessary to renounce the idea that the electromagnetic field is to be regarded as a state of a material carrier. The field then becomes an irreducible element of physical description, irreducible in the same sense as the concept of matter in the theory of Newton.1 On the basis of the general theory of relativity ..., space, as opposed to" what fills space," which is dependent on the coorrdinates, has no separate existence.2 There is no such thing as empty space, i.e., a space without field. Space-time does not claim existence on its own but only as a structural quality of the field. Thus Descartes was not so far from the truth when he believed he must exclude the existence of an empty space. The notion indeed appears absurd, as long as physical reality is seen exclusively in ponderable bodies. It requires the idea of the field as the representative of reality, in combination with the general principle of relativity, to show the true kernel of Descartes' idea; there exists no space " empty of field." 3 1 Albert Einstein, Relativity: The Special and the General Theory (New York, 1961), pp. 149-150. 2 Ibid., p. 155. s Ibid., pp. 155-156. 480 SPACE-TIME AND THE COMMUNITY OF BEING 481 Space-time is not necessarily something to which one can ascribe a separate existence, independently of the actual objects of physical reality. Physical objects are not in space, but these objects are spatially extended. In this way, the concept "empty space " loses its meaning.4 These statements raise some interesting questions for the philosopher working within the Judaeo-Christian metaphysical and cosmological tradition. Einstein's concept of the spacetime continuum constituted by the field (or by the plurality of fields seen as interrelated) amounts in effect to a reduction of space-time to relation, to that which is constituted by a universal relational network. One may ask whether this concept is, as many seem to believe, a demolition of the classical and Christian view of the world, or whether, on the contrary, it amounts to a rediscovery of that view from the perspective of the vocabulary of contemporary physics. To ask the question in a slightly different way: Does relativity have anything to do with relativism and hence with the anti-ontological thrust of the latter? This question inevitably involves us in the more general question how the physical structure of the cosmos does or does not reflect the ontological structure of being-i.e., how is the cosmos as known by physics related to the world-order as the intelligible object of a philosophical cosmology? How are the various levels of cosmic order, from inorganic matter to the human level, related to one another? It will be the contention of the present essay that the relativistic concept of the cosmos not only is not destructive of the classical and Christian one, but converges with it, because the latter is grounded in the concept of being as being, and being in turn must be understood as the universal concept and reality which has reality by virtue of the community of beings, i.e., by virtue of relation. These concepts will be further clarified in the course of the discussion. Let it be clearly understood, however, that what follows does not pretend to constitute a rigorous logical derivation of a cosmological system but is 4 Ibid.," Note to the Fifteenth Edition," p. vi. 482 GEORGE A. KENDALL rather a series of speculations, of brief glimpses of areas of convergence which have drawn attention to themselves in the course of the struggle for ontological and cosmological truth. As such, they are presented as a step along the way in the search for understanding, not as...