Fluid Dynamics of Spacetime: Spacetime Currents as an Alternative to Dark Matter and Galactic Rotation

Abstract

This paper proposes an alternative theoretical framework for understanding large-scale cosmic dynamics. We postulate that spacetime is not an inert void, but rather a fluid with an intrinsic and constant density (ρ_ST). In this conception, moving mass and energy (described by the stress-energy tensor of General Relativity), by interacting with this dense medium and with a certain viscosity, exert a direct "traction" that generates macroscopic currents and flow patterns in the very fabric of spacetime (v_ST). We argue that these "spacetime currents" are the true agents behind the anomalous dynamics observed in galactic rotation curves, offering a unified explanation that eliminates the need to postulate the existence of dark matter.