Your inability to grok that is your problem.
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Cracked me up!
I’ve sometimes used the term in conversations and the people look at me like I’m crazy.
Just re-read the book for the third time a month or so ago and learn something new about the story each time.
:)
It must be 30 years at least since I read it.
I liked Time Enough for Love: The Lives of Lazarus Long better though.