The Nature of Space Time
  We first examine the approximation involved in the conventional differentiable spacetime manifold. We then analyse how, going beyond this approximation, we reach the non commutative spacetime of recent approaches. It is shown that this provides the rationale for El Naschie's transfinite Cantorian spacetime. The nature and form of the consequent Generalized Uncertainity Principle is also briefly investigated. 
B.G. Sidharth