A recent generation of historians of science, far from portraying accepted scientific views as objectively accurate reflections of a natural world, explain the acceptance of such views in terms of the ideological biases of certain influential scientists or the institutional and rhetorical power such scientists wield.
Topic
Scientific truth's relationship to objective reality
Framework
Present Debate / Challenge a Position
Main Point
C'mon, fools. Y'all know that some scientific truths are objective facts of the world (like H20 or genetics). Sure, it's complicated and roundabout how we discover these truths (lots of mistakes along the way) and it's influenced in interesting ways by power structures and ideologies, but stop playin' like scientific truths are just subjective opinions.
Summary
P1 - Describes 2 points of view (pushes back against one)
We learn what "historians of science" mindset is -- the accepted scientific views we have aren't because they accurately describe objective reality, they're because certain scientists and organizations are influential enough to get other scientists to accept these views.
"Philosophers of science" have a related mindset -- scientific views aren't what they are because they align with objective reality, they're the result of creative scientists inventing things in their minds, with other scientists trying to falsify them.
In the final sentence, the author uses the negative attitude word "extremism", telling us that the author is against historians of science (and probably not a fan of philosophers of science).
P2 - Author sternly rebukes this crap
The author ain't having it. H20 is not the creative invention of a scientist. It's objective reality.
P3 - Author makes some friendly concessions to the historians / philosophers
Hey, philosophers, I feel you --- science takes such a circuitous path to get to the truth (with lots of mistakes and inaccuracies) that it probably feels like a bunch of random conjectures.
Hey, historians, cool stuff --- you've uncovered some interesting insights about how influence / power structures affect which truths become accepted when.
P4 - But, again, don't go runnin' 'round town speakin' that nonsense again
The author reminds these two groups of how cockamamie it is to suggest that scientific truth isn't tethered to objective reality in some crucial way, and she suggests how historians could continue doing their good stuff without venturing into this dumb stuff.