Determine whether such a spacetime tiling can be obtained by sCNP
Determine whether a G-symmetric spacetime quasi-tiling, if it exists, can be constructed using the symmetric cut-and-project (sCNP) method.
References
If such a $G$-symmetric spacetime quasi-tiling exists, then, could it still be obtained via sCNP? That we do not know.
— Spacetime Quasicrystals and Computational Complexity Theory in the Road Towards Quantum Gravity
(2610.09855 - Mygdalas, 7 Oct 2026) in Chapter 6, Section 6.4, 'Point Set, But No Tiling'