  Inter alia, the high precision WMAP data on Cosmic Microwave Background
Radiation marginally indicate that the universe has positively curved (and
hence spherical) spatial sections. In this paper, we take this data seriously
and consider some of the consequences for the background dynamics. In
particular, we show that this implies a limit to the number of e-foldings that
could have taken place in the inflationary epoch; however this limit is
consistent with some inflationary models that solve all the usual cosmological
problems and are consistent with standard structure formation theory.
