The rise of the internet and its evenhanded ability to spread both information and misinformation put the last nail in the coffin of popular belief in objectivetruth.
Brave scientists soldiering on in pursuit of the objectivetruth are increasingly demonstrating the falsehood of the theory that human activities are threatening the planet with potentially catastrophic global warming.
Mr Derrida always denied any responsibility for the undisciplined nihilism of his imitators, who gave the strong impression that deconstructionism had somehow succeeded in undermining, or even in refuting, the notion of objectivetruth.