Random walk and universal expansion

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The discussion explores the possibility of explaining Hubble expansion through the concept of spacetime events undergoing a random walk. It highlights a deterministic relationship between the universe's content and Hubble expansion, consistent with most cosmological models rooted in general relativity. Loren's suggestion draws parallels to E. A. Milne's Kinematic Relativity cosmology, which introduced the idea of 'K Calculus.' This connection suggests alternative interpretations of cosmic expansion. Overall, the conversation delves into the intersection of randomness and determinism in cosmological theories.
Loren Booda
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Can the Hubble expansion be explained in terms of spacetime events undergoing a random walk?
 
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There is a deterministic relation between the content of the universe and the Hubble expansion, at least in most (all?) of the cosmological models based on general relativity.
 
However Loren's suggestion is similar to E. A. Milne's Kinematic Relativity cosmology. (Relativity, Gravitation and World-Structure 1935) in which he first describes what is now known as 'K Calculus'.

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