“Everything I Don’t Remember” by Jonas Hassen Khemiri (post 1): What is the meaning of novel’s title?

Sixty percent through this novel (1, 2), I still don’t know the meaning of its title. What is not remembered by whom?

It may not turn out to be relevant, but the title reminds me of an anecdote in my first post on Dickens about Sir Walter Scott’s strange amnesia for the plot of a novel he had just completed (everything he did not remember):

Amnesia Scenario: Another novelist became ill with gallstones, jaundice, and bouts of severe abdominal pain. The pain was treated with medication that could impair memory. In multiple personality, pain and drugs may affect one identity much more than they affect another identity. In this case, the pain and drugs may have had little effect on the identities who produced the stories, but may have, temporarily, incapacited and put to sleep the writer identity, since, for the first time, the novelist dictated his novel to secretaries instead of doing the writing himself. After the novel had been completed and the illness had remitted, one of the secretaries got into a conversation with the novelist, and was astounded to find that the novelist (writer identity) could not remember the story of the novel he had just completed. But why should the writer identity remember it? He had slept through it. This novelist’s remarkable amnesia for The Bride of Lammermoor (1819) is reported in Lockhart’s Memoirs of the Life of Sir Walter Scott (1837/1902).

1. Kirkus Review. “Everything I Don’t Remember.” https://www.kirkusreviews.com/book-reviews/jonas-hassen-khemiri/everything-i-dont-remember/

2. Wikipedia. “Jonas Hassen Khemiri.” https://en.wikipedia.org/wiki/Jonas_Hassen_Khemiri