Steven Pinker in Literary Hub:
Intellectuals hate progress. Intellectuals who call themselves “progressive” really hate progress. It’s not that they hate the fruits of progress, mind you: most pundits, critics, and their bien-pensant readers use computers rather than quills and inkwells, and they prefer to have their surgery with anesthesia rather than without it. It’s the idea of progress that rankles the chattering class—the Enlightenment belief that by understanding the world we can improve the human condition.
An entire lexicon of abuse has grown up to express their scorn. If you think knowledge can help solve problems, then you have a “blind faith” and a “quasi-religious belief” in the “outmoded superstition” and “false promise” of the “myth” of the “onward march” of “inevitable progress.” You are a “cheerleader” for “vulgar American can-doism” with the “rah-rah” spirit of “boardroom ideology,” “Silicon Valley,” and the “Chamber of Commerce.” You are a practitioner of “Whig history,” a “naïve optimist,” a “Pollyanna,” and of course a “Pangloss,” a modern-day version of the philosopher in Voltaire’s Candidewho asserts that “all is for the best in the best of all possible worlds.”
Professor Pangloss, as it happens, is what we would now call a pessimist. A modern optimist believes that the world can be much, much better than it is today. Voltaire was satirizing not the Enlightenment hope for progress but its opposite, the religious rationalization for suffering called theodicy, according to which God had no choice but to allow epidemics and massacres because a world without them is metaphysically impossible.