The Ohio State experiment demonstrates that superconductivity in twisted bilayer graphene can be toggled by altering the dielectric environment via strontium titanate, rather than solely by doping or twist angle. Unlike conventional BCS theory where reduced Coulomb repulsion strengthens pairing, here increased environmental screening weakened the superconducting state, pointing to an unconventional mechanism likely involving electron correlations or phonon-mediated interactions modulated externally. Methodology involved fabricating magic-angle twisted bilayer graphene devices on SrTiO3 substrates and performing low-temperature transport measurements while tuning gate voltage and dielectric screening; sample details indicate multiple devices but no explicit count is reported, limiting statistical robustness. This work, published in peer-reviewed Nature Physics, builds on the 2018 magic-angle discovery by Cao et al. (Nature) yet adds environmental control absent from prior electrostatic gating studies. A related 2022 analysis in Nature Materials on dielectric engineering in 2D materials supports the pattern that substrate choice can renormalize interaction strengths by up to 30%. Limitations include operation only at millikelvin temperatures and incomplete microscopic theory, leaving open whether the switch generalizes to other moiré systems. The finding reframes superconductivity design from intrinsic material properties toward tunable heterostructure environments, with implications for energy-efficient interconnects and quantum sensors.