Researchers have made a breakthrough in quantum computing by decoupling 2D translation-invariant topological CSS codes, which are equivalent to stacks of toric codes after coarse-graining. This development is significant because it removes anyon-permuting translations without breaking more translation symmetry than necessary. The study proves that no further obstruction exists, allowing for more efficient quantum computing constructions. Specifically, the researchers demonstrate that passing to a coarser scale enables the removal of anyon-permuting translations while preserving the desired properties of the topological CSS codes1. This advancement has implications for the development of quantum error correction and cryptography, as it enables the creation of more robust and efficient quantum computing systems. The ability to decouple 2D translation-invariant topological CSS codes without introducing additional obstructions is a crucial step forward in the development of quantum computing, and it has the potential to significantly impact the field of cryptography.