Quantum Fluid Spacetime Theory (QFST): A Turbulent Viscous Fluid Approach to Galactic Rotation Curves Without Dark Matter

We propose Quantum Fluid Spacetime Theory (QFST), a framework in which spacetime at galactic scales behaves as a turbulent, viscous fluid. A rotating galaxy induces a large-scale vortex generating pressure gradients that naturally produce flat rotation curves without dark matter particles. Proof of concept fit on NGC 3198 achieves chi2_red = 0.678 vs NFW chi2_red = 1.219. Code available at GitHub.