>>>>If you want "believable" to go with "magic", you need to posit a logical
>>>>reason for magic to work.
>>>>
>>>>There are, I think, three: theological, technological, and simulation.
>>>
>>> You left out (4) physics.
>>>
>>> Of course, such an explanation usually has to explain how it can be
>>> that the secondary world is *so* much like our own and yet has
>>> radically different laws of physics. And almost invariably
>>> encompasses some form of dualism, even if it's not a theological one.
>>
>>Is there anything on Earth that expresses duality better than a mirror?
>>A mirror's magic attracts small children who intuitively understand the
>>force in mirrors.
>> "The Unpleasant Profession of Jonathan Hoag" (RAH) uses mirrors to
>>incorporate standard spellbound symbolism into the story. The story's
>>mirrors function as portals to different reality or dimension.
>>
>> Surrealism Through the Mirror of Magic
>>
>> ... The force of magic flows in two directions. One we may call
>> "energetic magic", and the other, "ritual magic". ...
>>
>> ... The imagination and magic are innately connected through
>> a use of matter as metaphor-matter???s ability to represent
>> something else. ...
>>
>> ... Taboo has more power than mana, because taboo things contain
>> power and elicit fear and the opprobrium of shunning. ...
>>
>>
https://rmc.library.cornell.edu/surrealismandmagic/essay.html
>>
>>
>> 2. Mirror magic and power
>>
>> Mirrors are peculiar objects associated with peculiar, uncanny
>> experiences. Myths and superstitions about mirrors abound.
>> Alice in Wonderland aside, stories involving mirrors are
>> typically unsettling. Mirrors are seen as providing more than
>> mere reflections, casting souls and spirits, endowed with the
>> potential power to trap them. For example, Narcissus lost him-
>> self in his own reflection and a spell of 7 years of
>> unhappiness is casted onto those breaking a mirror. Mirrors
>> surrounding a corpse are carefully draped, because it is said
>> that anybody whose reflection is casted with a corpse will
>> die soon after. After the burial of a familiar member,
>> observant Jews sit Shiva (in mourning). During this time all
>> mirrors are covered. In vampire stories, mirrors are powerful
>> instruments for deciding who is alive and who is already dead.
>> Meanwhile, in reality, mirrors do serve as instruments for
>> deciding whether someone is alive or not, placing one close
>> to the mouth to see if it collects the mist of a breath.
>>
>>
>>
http://www.psychology.emory.edu/cognition/rochat/lab/The%20uncanny%20mirror%20-%20A%20reframing%20of%20mirror%20self-experience[1].pdf
>
> I forget the title of Donaldson's duology about magic mirrors,
> but I remember with extreme Schadenfreude the end of the second
> book, in which the leading spherical SOB* gets his truly just
> desserts by means of one.
>
> ____
> *"An SOB whichever way you look at him."
Mirror chirality, or handedness, in sfnal literature is interesting.
Imagine an evil twin in the mirror. It's the same person, except for the
spirit within. The man who looks into a mirror's good while his
reflection's evil.
By definition the reflection's a mirror image. Unique unsympathetic
psyches prevent perfect metaphysical superimposition and thereby creates
character chirality between the good and the evil. Sfnal chirality, if
you please.
"The Mirror Image" (Gibson, Serling) uses sfnal chirality. [1] Can
anyone think of any other literature with sfnal chirality?
Note.
[1]
http://www.isfdb.org/cgi-bin/title.cgi?135104