In my story, mages are only able to cast spells through a technological device (I imagine it as something similar to a watch). The source of their magic is a region in the brain capable of producing non-physical neural particles that, when filled with "intent", are capable of manipulating energy and matter. All human beings produce these particles to a greater or lesser extent, which disperse randomly in the environment. For this reason, even if, for example, a mage focused on an object and tried to move it, its scattered particles would not be sufficient in strength and quantity to do so. Therefore, it is necessary to use a technological device that channels a sufficient amount of particles to reach the target.

This device works on the basis of an ore that will have great economic and geopolitical importance in my story, but I'm not sure how to explain its relation with neural particles. I thought about the possibility that it for some reason attracts them through its radiation or the technology inside the device is simply made of this material, something like the use of rare earth ores in the production of high technology, being essential for the transformation of the particles and their intent into a sort of code with coordinates with the target's location and the spell's ultimate goal.

At first these are just ideas and I don't know if they even make any sense. I want to find an explanation that is as realistic and scientific as possible, but because I understand little of the subject, I end up finding some difficulty. How could this device work and what could be the relation between the ore that composes it and the neural particles?

  • $\begingroup$ You'll most probably face this question : If you were to describe the neural particles, what would be the closest real-world comparison to it? Atoms, electrons, photons, radioactive particles...? I think it's important to know this to have a better outlook of what you want, otherwise I and others would say "I don't know, what is your desire?" ^^. $\endgroup$ Mar 13, 2022 at 2:01
  • 2
    $\begingroup$ Hmmm I conceive these neural particles as something similar to photons, in which they'd be like packs that can be empty (when people are unconsciously emitting them) or filled with intent (when a mage wants to cast a spell and have in mind its goal and the process it'll need to reach this goal). $\endgroup$ Mar 13, 2022 at 2:15
  • 1
    $\begingroup$ Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. $\endgroup$
    – Community Bot
    Mar 13, 2022 at 5:59
  • $\begingroup$ Hi @NinaFerrel and welcome. You did a pretty good job on the first question here but it may need some tuning to stay open to answers. Our members help with your world related issues, so you have to come with a completed story. Tell us how these particles came into existence (make it up, it's your story), and draw some link between this "earthy-ore" and "intent" (energy?). You have a lot of leeway here since you are using the magic and science-fiction tags, but that "story" part has to come from you. We can try to draw a world-based connection from it. What/who causes "intent" from the ore? $\endgroup$
    – Vogon Poet
    Mar 15, 2022 at 4:17

1 Answer 1


Your device is an analogue to a polarizing filter.

A polarizing filter is a passive device that allows some light to pass through it and blocks other light, depending on its polarization (the orientation of its waveform, loosely speaking). It is useful for when we want to selectively reduce a uniformly polarized component of incoming light (like the glare of reflected sunlight, for example) while allowing disorganized, ambient light to pass through in greater proportion.

Since you compare your "neural particles" to photons, perhaps you can handwave similar properties for them - analogues to wavelength, energy, and polarization - and have these properties contain the information that corresponds to the intention (or lack thereof) of the mind that generates them. Let's further handwave that the intent to do "magic" is encoded in the neural particles' "polarization"-analogue property.

Consider the following model:

  1. A normal mind, or a mage's mind when not focusing on doing magic, produces neural particles (NPs) that are not polarized in any particular direction. Their polarization is distributed in relatively uniform randomness, and they all cancel each other out - no magic, deliberate or otherwise, is done.

  2. A mage's mind, when focusing on an object with the intent to work magic upon it, bombards the object with a concentrated stream of NPs, all polarized in a particular direction which corresponds to the mage's intent. Unfortunately, due to an unhappy coincidence of physics (perhaps some sort of conservation law), NPs are always created in pairs with opposite polarization. So even though the mage is sending a beam of NPs that would accomplish the magic they desire, they are also unintentionally sending a beam that has the exact opposite effect. So the two beams cancel out and no magic is done.

  3. The same as case 2, but now the mage has positioned your device, made of the rare ore, in between their brain and the target object of their magic, in a specific orientation or using a specific configuration. The NPs polarized according to the mage's intentions pass through the device, reach the target and take effect, but the oppositely-polarized NPs are blocked by the device. Magic is accomplished!

Possible points to consider:

  • Why the rare ore? How does the device work? Your rare ore, when processed with the proper metallurgy, forms a crystal lattice with the unusual property that it selectively blocks some NPs and passes others. However, it need not be passive filtering like a real-life polarization filter for light, where the only thing that matters is physical orientation. You're hand-waving the physics of the NPs, so you can choose to have the device need to have electricity or magnetic fields (or whatever else) applied to make it operative.

  • If the unblocked beam's magic does work on an object, where does the blocked beam's energy go? If you want some elegance in your handwaved physics, perhaps your filter heats up as it blocks NPs, proportionally to how much work is done by the unblocked beam. Maybe your device would have a heat sink or cooling system attached to prevent it overheating and breaking or becoming ineffective.

  • If this device blocks your own anti-magic, maybe it can block your opponent's magic. If magi are fighting each other, their devices may be useful not only to enable their own magic, but perhaps could also be used to protect themselves or other targets from an opponent's magic.


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .