Quantum probing of null singularities

We adapt the dual-null foliation to functional Schr\"odinger representation of quantum field theory and study behavior probes in plane-wave space-times near null-singularity. A comparison between Einstein-Rosen Brinkmann patch, where latter extends beyond first, shows a seeming tension that can be resolved by comparing configuration spaces. Our analysis concludes support exclusively configurations with non-empty gravitational memory are focussed set measure zero focal plane respect observer. To conclude, we provide rough framework estimate qualitative influence back-reactions on these results.