magic

:magic: 1. adj. As yet unexplained, or too complicated to explain; compare automagically and (Arthur C.) Clarke's Third Law: "Any sufficiently advanced technology is indistinguishable from magic." "TTY echoing is controlled by a large number of magic bits." "This routine magically computes the parity of an 8-bit byte in three instructions." 2. adj. Characteristic of something that works although no one really understands why (this is especially called black magic . 3. n. [Stanford] A feature not generally publicized that allows something otherwise impossible, or a feature formerly in that category but now unveiled. 4. n. The ultimate goal of all engineering & development, elegance in the extreme; from the first corollary to Clarke's Third Law: "Any technology distinguishable from magic is insufficiently advanced".

Parodies playing on these senses of the term abound; some have made their way into serious documentation, as when a MAGIC directive was described in the Control Card Reference for GCOS c.1978. For more about hackish `magic', see Appendix A . Compare black magic , wizardly deep magic , heavy wizardry

Jargon File Version 4.3.1, 29 JUN 2001 =

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