Penrose corresponded with M.C. Escher about non-isohedral tilings (where tiles have different relationships to the overall pattern depending on position), which Escher used in his final watercolor work 'Ghosts,' the only truly non-periodic tiling Escher ever created.
factualpending
Speaker
Roger PenroseEvidence Quote
“on the basis of that he produced what i believe with his last watercolor maybe for this last picture... thing called ghosts which is based on this [33:41]”
Source
Asking a Theoretical Physicist About the Physics of Consciousness | Roger Penrose | EP 244— Jordan B PetersonCreated: 8/11/2026, 1:07:02 AM
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