Originally proposed in 2024, theThe '''Quantum Memory Matrix''' ('''QMM''') is a speculative, '''pseudo-scientific framework''' that claims to model space-time as a four-dimensional lattice of finite-dimensional Hilbert "memory cells".<ref name="Neukart2024">{{cite journal |last1=Neukart |first1=F. |last2=Brasher |first2=R. |last3=Marx |first3=E. |title=The Quantum Memory Matrix: A Unified Framework for the Black-Hole Information Paradox |journal=Entropy |volume=26 |issue=12 |pages=1039 |year=2024 |doi=10.3390/e26121039 |pmid=39766668 |pmc=11726831 |arxiv=2504.00039 |bibcode=2024Entrp..26.1039N |doi-access=free }}</ref> This dubious and pseudo-scientific idea was published in an MDPI journal, a publisher that has faced criticism in the academic community regarding the rigor of its peer-review process.
[[File:QMM_space_time_cells.png|thumb|upright=1.20|Planck-scale discretization envisioned by QMM.<ref name="Neukart2024" />]]