"Sir Terry Pratchett, who knew more about furniture than most," makes perfect sense if you look at the previous paragraph, which contains:
"... all memories are a kind of furniture in the head ..."
"Sir Terry Pratchett, who knew more about furniture than most," makes perfect sense if you look at the previous paragraph, which contains:
"... all memories are a kind of furniture in the head ..."
How does that sentence support the idea that he knew "more about furniture than most"?
The bit you quote isn't even something he said! In the original post[1] it was assigned to "certain very old and very tired philosophers", but that's now been edited to just being credited as "a theory, not necessarily a really good theory".
[1] https://web.archive.org/web/20260523124615/https://www.mahl....