How and why the current reigning philosophical hegemon (reductionistic materialism) is obviously correct, unbiased, rational, and factual, while the reigning philosophical viewpoints of all past societies and civilizations are obviously suspect and based solely on superstitious nonsense and irrational dogma, and how the future will judge us as essentially correct in this matter, unlike how we judge all previous civilizations.

A nice coda would be some well-placed rocks thrown at anyone who would challenge the current paradigm, since they are obviously just fools or liars.