Emergent Gravity in a Superfluid Vacuum & Metamaterial Engineering

Recent observations by the James Webb Space Telescope (JWST) of massive high-redshift galaxies (z > 10) have falsified the timeline of the ΛCDM model, suggesting that gravitational structure formation does not rely on the slow accretion of Dark Matter. This paper proposes a unified alternative: Superfluid Vacuum Theory (SVT) combined with Scalar-Tensor-Vector Gravity (STVG). We posit that space is a superfluid medium and gravity is a hydrodynamic pressure gradient. Furthermore, we identify a pathway for gravitational engineering using negative-index metamaterials and high-Tc superconductors to create "hydrodynamic slip surfaces" within the vacuum, effectively reducing inertial mass.