Wesley Salmon

Wesley Salmon：科学哲学家，过程因果理论奠基者，标记传递与因果解释

实

ENTITY · WESLEY SALMON · UNIVERSITY OF PITTSBURGH · PROCESS CAUSATION · MARK TRANSMISSION · 1925–2001

Wesley Salmon

American philosopher of science (1925–2001) — principal founder of process theory, anchoring causal structure in the physical world

Salmon’s core move is to distinguish causal processes from pseudo-processes by “mark transmission”: causal processes can transmit marks, pseudo-processes cannot. A moving ball is a causal process (a mark on the ball travels with it), a moving shadow is a pseudo-process (placing a mark at one point of the shadow does not travel with the shadow). This anchors causation in real physical connections in the world.

Core Distinction of Process Theory

Causal ProcessCan transmit marksMoving ball: a mark on the ball travels with it to its destination

Pseudo-ProcessCannot transmit marksMoving shadow: a mark placed at one point on the shadow vanishes as the shadow moves

Strengths and Limits

Handles Preemption

Distinguishes preemptor from backup by checking integrity of the causal process — process theory’s strong suit

Prevention Difficulties

In prevention, cause and effect share no physical process — counterfactual theories handle these cases better

Dowe's Correction

Phil Dowe (1992, 2000) replaces marks with conserved quantities (energy, momentum) — avoids the self-circularity of the mark concept

Causal-Mechanical Explanation

Scientific explanation is essentially revealing the causal mechanism behind a phenomenon — against the covering-law (D-N) model

→ Process Theories · Preemption · James WoodwardSalmon (1984)

Wesley Salmon

概述

Wesley C. Salmon (1925-2001)，美国科学哲学家，匹兹堡大学教授。Salmon 是过程理论的主要奠基者，通过”标记传递”（mark transmission）概念区分因果过程和伪过程，将因果关系锚定在物理世界的真实连接中。

因果理论贡献

过程因果理论

Salmon 在 Scientific Explanation and the Causal Structure of the World (1984) 中提出：

因果过程 vs 伪过程：因果过程可以传递标记（marks），伪过程不能。一个运动的球是因果过程（可以在球上做标记，标记随球移动），一个移动的影子是伪过程（在影子的一个位置放置标记不会随影子移动到下一个位置）。
因果交互：两个因果过程在时空交叉点上的相互作用。

后续发展

Salmon 的标记传递理论后来被 Phil Dowe (1992, 2000) 的守恒量理论所修正和发展。Dowe 用守恒量（能量、动量、电荷等）的传递替代了 Salmon 的标记传递，避免了标记概念本身依赖因果的循环性问题。

因果解释

Salmon 还发展了因果-机制解释模型（causal-mechanical model of explanation），主张科学解释本质上是揭示现象背后的因果机制。

理论地位

Salmon 的过程理论在处理先占案例上表现出色（通过检查因果过程的完整性来区分先占者和备用者），但在处理预防和双重预防案例上面临困难（预防中原因和结果之间没有物理过程连接）。

References

Stanford Encyclopedia of Philosophy, “The Metaphysics of Causation”, sources/sep-causation-metaphysics.md
Salmon, Wesley C., 1984, Scientific Explanation and the Causal Structure of the World, Princeton University Press
Salmon, Wesley C., 1994, “Causality without Counterfactuals”, Philosophy of Science