George Reisch

In response to Roth and Ryckman, I explain in more detail why narratives fashioned with ideal, quantitative covering laws cannot be combined into large-scale covering-law explanations and specify further reasons for supposing that history can be conceived as dynamically nonlinear. I also appeal to an episode in the history of science to examine the idea that dynamical complexity is local in historical space and time and to suggest that such complexity does not pose a unique problem for historical narration. Finally, I suggest that Roth and Ryckman's critique of the use of nonlinear dynamical concepts in historical explanation must extend to explanations employing concepts from linear science. I conclude that their warning against the incoherence of scientism is not convincing

This intriguing and ground-breaking book is the first in-depth study of the development of philosophy of science in the United States during the Cold War. It documents the political vitality of logical empiricism and Otto Neurath's Unity of Science Movement when these projects emigrated to the US in the 1930s and follows their de-politicization by a convergence of intellectual, cultural and political forces in the 1950s. Students of logical empiricism and the Vienna Circle treat these as strictly intellectual non-political projects. In fact, the refugee philosophers of science were highly active politically and debated questions about values inside and outside science, as a result of which their philosophy of science was scrutinized politically both from within and without the profession, by such institutions as J. Edgar Hoover's FBI. It will prove absorbing reading to philosophers and historians of science, intellectual historians, and scholars of Cold War studies.

Hempel's proposal of covering laws which explain historical events has a certain plausibility, but can never be actually realized due to the chaotic nature of history. The natural laws that would govern both individual lives and greater history would be nonlinear; consequently, in the terminology of chaos theory, the final states of both are extremely sensitive to initial conditions. Initial conditions would need to be exactly known in order to account correctly for historic phenomena, especially for causes and effects which span long, historically interesting, lengths of time. Covering-law history therefore fails because the details of initial conditions are generally unknowable. Since this constraint diminishes as the time over which covering laws operate is divided into smaller consecutive intervals of scenes, covering-law explanations resolve into those having a narrative temporal structure