Rethinking Cosmic Expansion: The Hydraulic Effect
I am the originator of S-Matter & the Fifth Dimension, a theoretical framework exploring the relationship between a proposed timeless, spaceless fifth-dimensional foundational layer and our observable four-dimensional universe. It introduces S-Energy and S-Matter as fundamental proposed elements in this relationship and explores how physical reality and cosmic structures may emerge.
The complete framework is presented in:
S-Matter & the Fifth Dimension — Revision 20.0 (Cosmologic Framework) https://drive.google.com/file/d/16nbaDfyecXStIK7ndZwxR3CntU9cQjqM/view?usp=sharing
Rethinking Cosmic Expansion
Within this framework, I propose an alternative interpretation of what we currently describe as cosmic expansion. Rather than assuming that space expands uniformly throughout the universe, I explore whether its local dynamics might be influenced by the evolving density distribution of matter and the interaction between high-density and low-density cosmic environments.
Get Hakan Üçok’s stories in your inbox
Join Medium for free to get updates from this writer.
The existence of black holes, cosmic voids, filaments and galaxy clusters is observationally established. My hypothesis concerns the relationships between these structures.
I consider black holes as high-density sinks and cosmic voids as extremely low-density regions. I propose that matter redistribution, together with the growth and evolution of cosmic voids, may produce corresponding local changes in spatial dynamics.
I call this proposed relationship the Hydraulic Effect.
The term is an analogy for a density-dependent interaction, not a claim that space behaves like a conventional fluid. The proposed mechanism concerns how differences in density and the redistribution of matter between cosmic environments might influence local spatial behaviour.
My central question is whether some phenomena currently attributed to universal expansion could instead be explained, at least partly, by these local processes and the evolving structure of the cosmic web.
This is a hypothesis, not an established physical mechanism or a demonstrated replacement for standard cosmology. It requires mathematical formulation and observational testing, particularly against cosmological redshift, distance measurements and large-scale structure observations.
My intention is to investigate whether we may be interpreting the universe’s changing spatial structure too uniformly, overlooking the possible influence of its internal dynamics.
Originally published at http://h3oklabs.wordpress.com on November 10, 2026.





