 The second question above is much simpler to dispose of once the first has been resolved. If Philo had previously been a mitigated skeptic and the Roman Books presented an epistemological innovation, his final position was not mitigated skepticism. But we have excellent evidence that it wasn’t a (recognizable) form of Platonism, since Antiochus and Numenius flatly rejected it, despite being avowed revivers of Platonism. (The only evidence in favor of the Platonist hypothesis is an explicitly unsupported fantasy in Augustine, to the effect that Platonist doctrines were secretly taught in the Academy throughout its skeptical phase [Against the Academics 3.37–43].) The fallibilist interpretation of the Roman Books is thus at least prima facie the most plausible candidate offered to date. Whether it is in fact a satisfying candidate will depend on its ability to present a coherent philosophical interpretation of the development of Philo’s epistemological views from the evidence we have.