Full Idea
Basic causal relations can, as a consequence of our scientific knowledge, be identified with certain physicalistic [sic] relations between objects that can be characterized in terms of transference of either energy or momentum between objects.
Gist of Idea
Science has shown that causal relations are just transfers of energy or momentum
Source
report of David Fair (Causation and the Flow of Energy [1979]) by E Sosa / M Tooley - Introduction to 'Causation' §1
Book Reference
'Causation', ed/tr. Sosa,E. /Tooley,M. [OUP 1993], p.3
A Reaction
Presumably a transfer of momentum is a transfer of energy. If only anyone had the foggiest idea what energy actually is, we'd be doing well. What is energy made of? 'No identity without substance', I say. I like Fair's idea.