The Measurement Framework Problem in Cosmological Observations: Light-Speed Constraints and the Reinterpretation of Gravitational Phenomena

This paper proposes that gravitational effects can be equivalently described as arising from the flow of a hypothetical medium through three-dimensional space, with time treated as a process rather than a dimension. Because all observational instruments are constrained by light-speed limitations, measurements of space and time are inherently relative to this framework rather than absolute. The interpretation preserves all mathematical predictions of General Relativity while offering alternative conceptual understanding. Building on the analogue gravity tradition (Unruh, 1981; Visser, 1998) and the river model of black holes (Hamilton & Lisle, 2008), the present work extends that foundation in three directions. It foregrounds the epistemological constraints that light-based measurement imposes on our access to spacetime structure. It shows that the process nature of time provides a structural, rather than merely statistical, account of temporal irreversibility. And it articulates the distinction between motion through the medium — bounded by c — and motion carried by the medium, which maps onto the logic of the Alcubierre warp drive and finds its natural worked example in black hole infall. Gravitational time dilation, length contraction, and frame-dragging effects emerge naturally from this flow-based interpretation, with mathematical correspondence to escape velocity providing the key connection.