Thanks, PaulQ!"Nostalgia is only amnesia turned around." = "Nostalgia is only the reverse of amnesia."
Nostalgia is the yearning for things you remember; amnesia is yearning to remember things you have forgotten.
"This part does not fit!"
"You are trying to put it in the wrong way - turn it around."
Hi, JamesM.Turned around = reversed (in position or direction)
"Nostalgia is amnesia turned around/reversed". As I read it, it means that amnesia is the inability to remember things of the past. Nostalgia is the opposite; people who are nostalgic are obsessed with the past. The past is "more real" to nostalgics than the present.