Kaluza-Klein cosmologies and inflation. II

The classical cosmology implied by Kaluza-Klein models is studied in some numerical detail. The constraints imposed on the parameters describing the early, n-dimensional epoch by the known properties of the current three-dimensional epoch are explored. The conclusion is that the present conditions are remarkably robust, depending essentially only on the total entropy within our horizon and requiring no fine tuning of the Kaluza-Klein parameters.