Graphs and illustations about inflation seem to be misleading more often than not. Take, for example, this one from Wolfgang Rindler's otherwise excellentswainy wrote:I did ask if the Graph was misleading.

*Relativity: Special, General and Cosmological*: This graph is typical in that it shows a knee in the "inflation" curve with a very large negative R'' right around t

_{EI}(the end of inflation). However, to the best of my understanding, the inflationary model does not in fact contain such a knee, and dR/dt is continuous across the end of inflation. Since the expansion during inflation is supposed to have been exponential (R'/R constant), this means that inflation in fact places the beginning of time

*longer*ago than the standard FRW models (which is actually how it manages to get around the homogeneity problem).