The document proposes a solution to Einstein's twin paradox involving quantized space-time and an additional nonlocal "grid dimension". It suggests quantizing space-time into units of Planck length and staggering multiple reference frames next to each other in the grid dimension. This would allow a passenger jumping between trains moving at relativistic speeds to disappear from one frame and reappear in the other, avoiding inconsistencies. Quantizing space-time in this way may unite general relativity and quantum mechanics by enabling quantum nonlocal effects like entanglement across separated regions of space-time.