Focused on the notion of the threshold of objectivity, my article dissects the empirical mirror-glass of the philosophy of Joseph Melançon. I propose to thrust this emblematic perspective of determinist discourse against the literary turn, acclaimed for its underpinning ambiguous subjectivity – here notably made relevant by Pierre Bourdieu. Both discursive practices complete each other and reject each other in a self-feeding spiral: incessant motivation for a hybrid, vexing study of mutual tensions.

The attitude of biologists to the history of their discipline varies. For some, a hazy knowledge of the recent past is all that is necessary to provide an explanatory basis for their work. They take it for granted that everything of value from the less recent past has been appropriately incorporated into present-day thinking. Other biologists see history as an integral part of their research: the historical roots of accepted facts and theories help in the evaluation of present positions. These (...) biologists bring to history their specialized knowledge, which can be an advantage, but often they also bring an agenda that biases what they investigate and how they present it. We illustrate this by describing our own foray into history, which was motivated by findings in cell biology that suggested that some accepted views about heredity and evolution were wrong. (shrink)

An invisible hand seems to play an important role in science. In this paper I set out the general structure of invisible-hand explanations, counter some objections that have been raised to them, and detail the role that they play in science. The most important issue is the character of the mechanisms that are supposed to bring about invisible-hand effects.