Question

Pierre Duhem’s holist thesis posits that an experimental hypothesis can never be isolated for testing in a vacuum; an apparent empirical refutation inevitably targets an entire auxiliary web of background assumptions and instrumental theories rather than the focal hypothesis alone. While this underdetermination of theory by evidence has led some epistemologists to conclude that experimental results cannot decisively arbitrate between competing theoretical paradigms, practicing experimental physicists have frequently operated under a localized pragmatism. When early twentieth-century researchers utilized the Wilson cloud chamber to track subatomic alpha particles, their confidence in the detection of individual ionizing tracks did not presuppose the absolute theoretical validity of overarching atomic models or electrodynamic formalisms. Instead, experimentalists exploited robust, low-level causal interventions—such as adjusting vapor supersaturation thresholds and applying magnetic deflection fields—whose operational reliability was established independently of the high-level quantum and cosmological frameworks under dispute. Consequently, an anomalous condensation trajectory in a cloud chamber was routinely isolated and investigated as a product of specific, manipulable experimental variables rather than precipitating an epistemological collapse across the entire theoretical superstructure.

Based on the passage, which of the following statements are most strongly supported by the text? Select all that apply.