Subject: Quantum Field Magic
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Posted on: 2015-01-10 15:51:00 UTC

Well, most people don’t think of wedges and screws as "technology", but where did you get "Muggle technology doesn't work at Hogwarts" anyway? I only remember Hermione saying 'All those substitutes for magic Muggles use – electricity, and computers and radar, and all those things – they all go haywire around Hogwarts, there’s too much magic in the air' (GF 28). Since computers and radar and, by extension, "all those things" use electricity, Hermione apparently doesn’t believe that non-electric Muggle technology doesn’t work at Hogwarts.

I always wondered whether Hermione got this wrong, JKR didn’t think it through, or this is a deliberate setup for a future change in Muggle-wizard-relationships.

If Hermione got it wrong or was misled by Hogwarts: A History, which is not always accurate, the teachers may have set up some anti-electronics charms to prevent "Gaming Boys" and "Walking Men" disturbing their lessons and distracting the students from their homework.

If magic interferes with electricity, then every electric device is a crude magic-detector. Muggles would realize that such things like cell phones don’t work in certain areas of London (around the Ministry of Magic, and probably St. Mungo’s). Muggle scientists wouldn’t think of magic, but they would investigate, and find periodic fluctuations correlated to rush hours (when hundreds of employees apparate to or from the MoM). Since sufficiently advanced technology is indistinguishable from magic, and sufficiently researched magic is indistinguishable from science, in the end it wouldn’t matter whether the scientists call spell casters "wizards" or "human sources of anti-electronic quantum fields".

Does the MoM monitor scientific publications? Would they be aware of such research and try to stop it? Even if some scientists were obliviated, the accumulated data would still be there and could be found by other scientists. What do wizards know about sensor networks, cloud computing, and the world-wide web? To prevent Muggles learning about magic, the wizards would need to learn much more about Muggles, so either way their relationship would change.

I never considered that using magic might interfere with brain activity in other ways than deliberately casted spells, but now I think that you are on something there.

Dr. rer. nat. Hieronymus Graubart, future Nobel prize candidate for discovering the mathematics of magic. (Not really. "The Mathematics of Magic" already exists, but since it is a novella by L. Sprague de Camp and Fletcher Pratt, it is called "Arithmancy" in the Potterverse.)

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