As I've maintained re the "quote" rituals, all along--
Nothing New under the Sun {{apropos in This context, eh?}}
ie.
Whatever we imagine We Just Thought-Up.. likely Has been said (even in Aramaic.)
I meant: 'geek' as applied to all those preemies who grokked sodiumethylmercurithiosalicylate ... as teens; many such in IT and .. ulp, Here!
Unclear if Heinlein's association with the word extended to lizard-biters or ... was focussed on Techno-geeks (as I surmise.)
Thus: just maybe an early-on appropriation of the genre --> the Specific, as techno-geek. Rest case.