Efficient and compact quantum hard drives using more reliable 2D error-correction needing fewer qubits

https://www.popularmechanics.com/science/a63000584/quantum-hard-drive/

"requires fewer qubits to suppress more errors, liberating more for quantum processing...  3D lattice with topological codes/ optimal scaling code parameters that essentially allow for error correction across two dimensions within the 3D structure. The single-dimension nature of previous error correction methods limited the system, but this new architecture pushes forward new quantum machines era including quantum hard drives... cryptography, complex quantum many-body system simulations.... future: scalability"