We now know that memories are not fixed or frozen, like Proust’s jars of preserves in a larder, but are transformed, disassembled, reassembled, and recategorized with every act of recollection.
Memory is Mutable
Oliver Sacks via Brain Pickings
In his recent New York Review of Books essay, legendary neurologist Oliver Sacks tackles precisely that, exposing the remarkable mechanisms by which we fabricate our memories, involuntarily blurring the line between the experienced and the assimilated:
It is startling to realize that some of our most cherished memories may never have happened — or may have happened to someone else. I suspect that many of my enthusiasms and impulses, which seem entirely my own, have arisen from others’ suggestions, which have powerfully influenced me, consciously or unconsciously, and then been forgotten.