Knacks: A Subtle Magic System
So I've been thinking about a magic system recently that doesn't contain the classic fire balls or feather falls. It's more like natural talents that people are capable of possessing or mental dispositions towards certain ideas that causes them to process information in unique ways. I don't have a name for the magic system, instead referring to them as Knacks like from the phrase "They have a knack for [that]."
In fact, that is actually how the population of the world usually interacts with the idea of the magic system. They think of these "magical" abilities as particular talents that an individual person possesses. These "powers" are not flashy or colorful like being able to summon dragons or create fire balls out of thin air or the usual magical powers that we ascribe to wizards or sorcerers. Instead, the Knacks are more like conventional talents we might find in our world, except elevated to almost supernatural levels.
You might find someone who is really good at running or jumping or seeing in the dark. Except, from the outside, there isn't any sparkles indicating that someone's knack has activated. Instead it is something that is always on. There is no turning it off. From the outside you might be watching someone with a knack for running but, depending on who you are, you might not be able to see anything vastly different between them and other people in a race in terms of their form. On a biomechanics level, however, their body runs at an incredibly efficient rate compared to other people.
Likewise, with jumping someone might just naturally fall into a form that is ridiculously efficient or effective at jumping as high or as far as possible, or someone with excellent awareness might be able to perceive more things in the dark without the need for a light.
Something to note about all of these Knacks is that they are all things that can be improved with practice and dedication. Now what could that imply? Well, for one thing, just because someone has a knack for a particular skill does not necessarily mean that they are better than everyone else in the world at it. Quite the contrary, it is very possible, and quite common, for people who do not have a knack for a particular skill to be much better than someone with a knack for it.
The reason for this is because having a knack does not necessarily mean that the person is actively practicing the skill that they are particularly gifted in. For example, someone with a knack for fishing may not live near a body of water. They would be unable to practice as frequently as someone who was a professional fisherman in a port town. Likewise, if someone with a knack for playing musical instruments did not play or interact with any instruments for a sizeable portion of their life they probably would not be very good compared to someone who actively practiced the piccolo on the daily.
You cannot lose your knack but you can lose your proficiency with your knack and be easily surpassed if you aren't continuously working with it. In other words, if you do not use it you lose it. It is just like any other skill.
That being said, someone that has ready access to practicing their knack can easily outstrip anyone who does not have a knack. If you saw someone with a knack who had all the time in the world to practice it you might think of them as superhuman.
Knacks are almost completely random. Any "generational" Knacks happened through pure happenstance and are not directly tied to blood. Heck, part of the reason why, in my world, Knacks have not been classified or studied on a consistent basis is because a number of the skills that people have Knacks in do not exist yet. For reference, I have been working with them in a vague medieval time period setting. A peasant is never going to find out that they have a Knack for flying a rocket ship or making the perfect cup of coffee.
The combination of possible skills with the inability to easily replicate them across a large sample size makes it difficult for even the identification of "magic" how we know it. Some people are just extraordinary when it comes to certain physical feats.
And then there are the "number crunching" Knacks, as I like to call them. They are not exclusively mathematics-based knacks despite their names. Instead I refer to them as such because, when it comes to them, there is a lot of mental overhead that happens in the person's subconscious. You know how you can see someone toss you a ball and you're able to catch it? When you go to catch the ball your brain is subconsciously calculating the velocity of the ball, your place in space in relation to the ball, and where to move your hands in order to catch it just in time. Best of all, you do not even have to consciously do geometry or trigonometry for different object shapes.
A more appropriate name for them might be "data crunching" Knacks but I have not bothered to worry too much about how to classify them because the people in the world hardly know they exist.
Someone with one of these Knacks might be really good at catching things or doing other things that heavily rely on hand-eye coordination. However, they can manifest in a number of different ways that can be perceived as almost like clairvoyance or short-range omniscience.
Before I go into an example I want to talk about another aspect of Knacks. It is possible for someone's knack to change throughout their life depending on their lived experiences and what particular aspects of their knack they interact with on a daily basis. For example, someone with what appears to be a knack for making paper planes could grow up and be good at making planes out of metal, or, instead of going the engineering route, they could grow up to be really good at playing darts (or other similar sports/games) because they are interacting more with the physical aerodynamics part of their knack more than the creation side of their knack.
One case steady I like to bring up as an example for how Knacks can manifest and change and be perceived by their individual is a character belonging to one of my friends.
He is a mercenary that comes from a war torn land and carries a sword that grants him incredible mastery with it in combat (I will get into items with Knacks later).
When he was born his government assigned Knack was the ability to perceive what is wrong with someone, physically, with just a look. Theoretically, he could have grown up to be an amazing physician, able to correctly diagnose people and take the steps to heal them or put them on the path to recovery without the need for fancy instruments. His knack would have been a combination of taking in a limited amount of information to extrapolate to the most correct solution and then put the steps into his head that he would need to take to fix them up. This would have required him to get an education in medicine and learn all about anatomy and all this stuff. He would still need to practice his Knack but he would have been an insanely good physician. Supernaturally good.
However, that is not what fate would decide for him. What ended up happening instead was he learned to fight as a child soldier and was exposed to a number of ways that people could die on the battlefield. This caused his Knack to change to identify the weak points of his adversaries and to tell him when he was gravelly injured and what needed to be done in order to keep himself, or another person, from immediately dying.
As an example, when he interacted with one of my characters he knew how to stop my character from bleeding out, but his Knack did not give him the steps to prevent infection or deal with more chronic conditions because he had very limited, if any, practice with dealing with those kinds of injuries. Nor did he have the education that would allow him to act with foresight. Instead, it was more like a timer ticking down in his head telling him when the next catastrophe would occur but he didn't know nor care how to deal with it until it rang in his ears like an alarm bell, metaphorically.
His Knack lost its original potency but changed to fit his lived experiences. That is not to say he could not change it to fit more in line with a conventional physician, it just means he would have to put in the time and effort to acquire the necessary information and practice it.
Pivoting a little, it is possible for items and tools to acquire a Knack. It is not like how people get them where they are automatically assigned them at birth. Instead, they must be imbued to the object over an extended period of time by their owner.
For example, a writing quill can get a Knack from its owner if the owner is an avid poetry writer. The more the owner puts themselves into their work the more the quill takes on, especially if the owner is actively working to improve and explore their own poetry skills. After many decades of tireless work the owner may pass their quill to another person and when that person tries their hand at poetry with it they may find that they are able to construct one with near supernatural virtuosity.
Some may think that the Knacked object is haunted because the object might be so strongly imbued that pieces of their past owners' memories might have leached into the object, leading to phantoms or apparitions appearing to talk with the new owner.
It is common for the most powerful of Knacked objects to be passed down between generations of a family. Something to note is that an object may not necessarily take on their owner's Knack. Instead, it is based on the particular action that the object is used for. So a quill might be really good at writing poetry because each of its owners used it to write beautiful poetry by the sea or a casserole dish might be particularly good at making potato casserole because, in that family, it is exclusively used for making potato casserole.
A mother might pass her casserole dish to her daughter, telling her she has only used it to make potato casserole, and so her daughter uses it only for potato casserole and then it gets passed to her daughter and her daughter and her daughter until that casserole dish has been used so many times to cook potato casserole with love that the generational desire to improve on their potato casseroles has caused the casserole dish to make the best god damn potato casserole in the whole world.
However, it is possible for a Knacked object to lose their Knack. It can change over time based on what it is used for, like a person's, however if someone leans too heavily on the Knack imbued in the object and do not actively try to improve their own skill it will lead to the Knack within the object fraying and, eventually, disappearing.
So, for example, if a quill passed through a long line of poets fell into the hands of someone who had no desire to improve their poetry, or, even, the quill was no longer used for writing poetry, then the Knack could pass from the quill entirely. If anything, leaving the quill in storage would preserve the Knack better than if it was used by someone who was using the quill just to write good poetry rather than to improve their own poetry abilities.