AM/FM

I was rereading an essay by Arthur C. Clarke last week, and came upon his First Law:

Any sufficiently advanced technology is indistinguishable from magic.
— Clarke's First Law, proposed by Arthur C. Clarke in his essay "Hazards of Prophecy: The Failure of Imagination", in "Profiles of the Future".

The fabulous Wizard of Oz
Retired from business becoz
  What with up-to-date science,
  To most of his clients,
He wasn't the Wizard he woz.
— Anon, quoted in "The Penguin Book of Limericks", edited by E. O. Parrott.

Any technology distinguishable from magic is insufficiently advanced.
— Benford's Corollary to Clarke's Third Law, proposed by Gregory Benford in "Foundation's Fear".

AM/FM: Engineer's term distinguishing the inevitable clunky real-world faultiness of "Actual Machines" from the power-fantasy techno-dreams of "F*ck*ng Magic."
— Entry from "Turkey City Lexicon: A Primer for SF Workshops", by Bruce Sterling, edited by Lewis Shiner.

progasm: the feeling you get when your code works the first time.
— Quoted in "a.k.a. Your Slice of Geek Culture".

Any sufficiently advanced technology is indistinguishable from a rigged demo.
— Andy Finkel.