This is a very interesting passage. The first three sentences look as though Horkheimer has an awareness of developments in quantum mechanics, and is weaving this into Marxism.
Peter Lamb
Just stumbled on Horkheimer’s notes for the Lenin essay ( 🔗 ⬇️), & there Horkheimer traces his own concept of “the Marxist method” back to:
(1) Marx-Engels on the camera obscura in The German Ideology intro
(2) Lenin’s 4-pt. def of dialectical logic in the ‘21 “Once Again, On the Trade Unions”!