 Note that a regularity by itself need not give rise to a variable hypothetical that we believe or are led to believe by future observations. A case in point is the regular connection between the sound of the hooters at a factory in Manchester and the workers going home at a factory in London (see  §1.3).  Ramsey (1931: 242) literally speaks of trust in order to characterize our epistemic attitude towards causal laws. Ramsey’s account of such laws, which supersedes his earlier best systems analysis, is explicitly epistemic. However, Ramsey’s account does not seem to have the resources to address the problem of singular causal relations. Under which causal law could we subsume the causal hypothesis that dinosaurs became extinct by a collision of the Earth with a meteor?