This is building on the Yin Yang model for a presented magic effect -- it is an attempt to create axioms that will show how to improve the Yang in the model. A quick review: A magic effect, when performed, will have two aspects at work, first the nature of the effect (Yin), and second, the conviction in the execution of the effect (Yang).
Here are some proposed ideas in order to improve magic "Yang". It is not meant to be an all-inclusive list -- meaning, the aim should not be to pack every single Yang enhancer into the effect. There's only room for so much.
* Whatever your method is, it is proof that you didn't meet a claim of magic (or mindreading, or whatever). Therefore, your method is your trick's greatest obstacle to conviction. It sucks, and therefore must be annihilated from the spectator's consciousness. That is your first priority.
* Even if you can successfully annihilate the actual method, a spectator might believe that you did something else non-magical to make the feat occur. Therefore, after you successfully annihilate the actual method, you must annihilate all other methods.
* To annihilate the suspicion of sleight-of-hand, you must not use sleight-of-hand. If you have to use sleight-of-hand, you should eliminate moves, shows of skill, and feelings that the spectator might have missed an action. You will also benefit by making it seem that you're incapable of sleight-of-hand, either in general or specific to the trick.
* To annihilate the suspicion of gimmicked props, you must not use gimmicked props. If you have to use gimmicked props, you should make them innocent-looking, borrowed (ie: plant the prop), or easily switchable (borrowed and then switched). What's more you must eliminate feelings that you either rely on gimmicked props or else could have used one or switched one in somewhere in the construction. You will also benefit by making it seem like you couldn't have used a gimmicked prop, or wouldn't resort to using such a base method.
* To annihilate the suspicion of self-workingness, you must not use a self-working method. If you have to use a self-working method, you should make the process feel as fair as possible. You will also benefit by making it seem like the process isn't a process at all.
* To annihilate the suspicion of stooges or hidden assistants, you must not use a stooge or a hidden assistant. If you have to use a stooge or hidden assistant, then make sure that they are not memorable and do not draw attention to themselves. They should feel like an entity divorced from the performer. A stooge should feel like any other spectator, and if possible they should effectively camouflage themselves amongst other spectators. You will also benefit by making it seem like all credit should go to you, rather than to any other entity.
* To annihilate the suspicion of misdirection, you must not use misdirection. If you have to use misdirection, the audience should not feel that they were looking away from anything. The best way to make them feel like they didn't miss anything is to ensure they are looking at something important to the effect, if not the effect itself. You will also benefit by continually returning focus to your hands.
* To annihilate the suspicion of a system of outs, you must not use a system of outs. If you have to use a system of outs, make sure (a) each out unfolds identically to other outs for the same trick, or (b) it looks like you're doing a completely different trick.
* If you are using sleight-of-hand, the fewer moves, the better.
* If you are using tricky apparatus, the more examinable the apparatus, the better.
* If you are using a self-working trick, the smaller the process, the better.
* If you are using a stooge, the more innocent the stooge, the better.
* If you are using a system of outs, the more consistent the presentation, the better.
* Sleight-of-hand betrays itself through many movements. As such, it follows that the most convincing sleight-of-hand will feel like no move happened.
* Apparatus betrays itself through introduction by the magician, rather than a spectator. As such, it follows that the most convincing use of apparatus will be one which the spectator supplies itself.
* Self-workingness betrays itself by having a long-drawn out process dictated by the magician. As such, it follows that the most convincing use of self-workingness will be a shorter, clearer process where everything feels controlled by the spectator.
* Stooges and hidden assistants betray themselves by being visible and interactive with the magician in a familiar way. As such, it follows that the most convincing use of stooges or hidden assistants is to make sure they are either psychologically invisible or truly invisible (ie: covered).
* Misdirection betrays itself by the shifting between more than one point of focus. As such, it follows that the most convincing use of misdirection will be one in which there is no apparent shifting of focus.
* Outs betray themselves through inconsistency of presentation. It follows that the external reality of the trick should be consistent each and every time.
* Every method should be analyzed to figure out how it betrays itself. Every method has something damning that has to be concealed -- if it has nothing, then it is not a non-magical method, it's the real deal.
* To annihilate the suspicion of any method that undermines your claim, you must not use a method that undermines your claim. If you have to use a method that undermines your claim, then the ideal situation is for the spectator to be told the method, and for them to reject that explanation outright by virtue of the evidence that they were given during the effect.
* From the standpoint of conviction, the highest level of conviction occurs when they will swear that you did not use, or could not have used, the method that you used. The second highest level is when they do not remember that you could have used the method you used. The third highest level is when they cannot see the method that you used.
* It is normal for a spectator to be suspicious. You are making a false claim. Spectators who guess methods are being absolutely reasonable.
* For moments of magic, the closer it is to your method, the more the two run the risk of being identified as related in a causative way. For sleight-of-hand, punctuation serves as a separating agent between method and effect. This is a corollary to the Yin axiom that visual magic is the best, since visual magic frequently betrays the moment that a method is taking place.
* According to Darwin Ortiz, the critical interval is the time between when a spectator believes the trick has begun and when the spectator believes it has finished. Every action during the critical interval represents a moment when the magician could have done something sneaky. Therefore, the higher the percentage of fair actions, the better.
* According to Wesley James, there are two aspects of illusion when it comes to a move. One if the positive illusion -- you really look like you're doing action A. One is the negative illusion -- you really look like you're not doing mutually exclusive action B. Despite the use of the terms "positive" and "negative", both of these are good illusions to have, and ideally, you can have elements of both. Even though the positive illusion seems to give great credence to Yin, it's possible that a very strong negative illusion can give even greater credence to Yang. Case in point: Paul Gertner's Cups and Balls using steel ball bearings. If he's manipulating the props by hand (ie: using sleight of hand) then it would make sense that the ball bearings would clang against the cups as the props were shuffled around. The lack of this evidence makes a good case for a negative illusion -- it must be magic, because if it were sleight of hand, we'd hear noise.
* According to Al Schneider, there are actions that a spectator will take for granted, and actions that a spectator will evaluate. If this is true, then the more you can conceal the method amongst actions the spectator will take for granted, the better.
* According to Whit Haydn, it is important to elicit agreement about the fairness of a state. It follows then that if you are able to gain agreement about the fairness of a state when the state is unfair, you are in the best position to show the effect (in essence, show proof about the new state).
* According to Dai Vernon, it is important to seek naturalness. The best way to do this is to examine what is unnatural in a context and eliminate it. If it is natural to do 18 Z-flourish cuts, then doing 18 Z-flourish cuts is good. If it is unnatural to turn a card face-down, then turning a card face-down is bad.
* It is possible to use different methods to show the same effect. According to Juan Tamariz, it is important to use methods that allow you to cancel the weaknesses of other methods. If you take this approach, then all evidence should point to every phase being identical, or barring that, as identical as possible.
* Juan Tamariz also spoke about using patter to cancel suspicions. It is important to understand what the most common suspicions are in order to make a given effect work, what the intuitive suspicions are, and to annihilate them.
* It is easier to cancel a method that you're not using than a method that you're using, since you can eliminate all evidence of every possible method except for the method you actually use. Then, the best you can do is conceal.
* Keep in mind that every cancelled suspicion will put other possible explanations under heightened scrutiny. As such, it makes sense that you should cancel your actual method earlier on, pushing them towards a false method that is gaining all of their scrutiny, before finally cancelling that.
* If you want to go beyond effects and build conviction in the cause of the magic, then it would help to be able to portray the same power using a number of methods that cancel each other. Say, for instance, that you're going to show that you can predict the future. It would be weak in Yang to employ a sleight-based force three times. It would be stronger in Yang to perform a sleight-based force once, a gimmicked-based force once, and then use a system of outs afterwards.
* To manipulate and undermine suspicions a spectator might have, you MUST understand what those suspicions are about any effect you do. Research and eliminate.
* This is a fundamental axiom: Your method sucks. You must not cling to it just because it's worked before. Instead, you must constantly evaluate your audience to see if the method will work.
* If you perform for an audience that knows method X, then it is riskier to use method X than it is to use a different method. If you perform for an audience that doesn't know method X, and method X is the most expedient method, use method X.
* The closer they are, the more they can control the prop and the proceedings, the more they can see everything, the greater the conviction in the effect. The further away they are, the less they can control the prop and the proceedings, and the less they are able to take visual account of everything, the weaker the conviction in the effect.
* Conviction wavers over time, unless new proofs are offered during that time. Then, conviction builds over time with each proof.
* Nothing done in the performer's hands will ever be as fair as something done by the spectator themselves. The best false shuffle done by a magician might be good enough to persuade an audience that the deck is shuffled, but it will never be as good as a spectator shuffling the deck themselves.
* Nothing done with a prop that the magician supplies will ever be as fair as something done by a prop supplied by a spectator. A magician-supplied prop might be more aesthetic, more clear, or more expedient, but it will never be as fair.
* Nothing done with a self-working process will ever be as fair as a process truly dictated by a spectator. A magician-directed process might be entertaining, but so long as he maintains control, it is never fair.
* If you claim magic, then your claim is prop-neutral. If your claim is prop-specific, then you are not showing magic, you are showing skill with that prop. The best way to reinforce a claim is to repeat it. However, remember that our method is the key weakness is our effect execution. The best way to let an audience figure out a method that initially fooled them is to repeat that exact same method.
* If you do not tell them what you're about to do, they won't be as ready to know what to be suspicious of. However, while this allows you to fool them, the highest level of conviction will occur when they feel mentally prepared to see the effect, they see it, and then they're baffled anyway.
* It is possible to take advantage of strong Yin to serve as misdirection (in an abstract sense) away from the method. The more they are paying attention to the wand as a source of magic power, the less they are conceiving of the wand as a suspicious method-enabling object. The more they look forward to that moment of apparent mind-reading, the less they are paying attention to the way you handle a billet.
* Yin also provides opportunities to change points of focus, and degree of intensity of focus. A joke can create a release of tension. Intense focus on your part can provoke intensity of focus on their part.
* Yin also creates different problems for conviction. Even if you can convincingly change $1 into $100, then you have an issue where spectators can ask "Well, if he can do that, why is hoping for a tip after the performance?" In general, the lower the claim, the easier it is to gain conviction. The higher the claim, the more evidence is needed to gain conviction. It is also possible to have a claim so high that no amount of evidence will support it.
* Also, if the Yin is weak, it will dilute interest in the Yang. Remember, Yin and Yang are not mutually exclusive: Yin gives meaning to Yang, and Yang gives credibility to Yin.
* Resources that are good studies for Yang... Darwin Ortiz's Designing Miracles, pretty much anything by Whit Haydn, Juan Tamariz's The Magic Way, Gary Kurtz's Leading With Your Head (to understand misdirection), (more to come later?)...
Note: This is a first draft, and liable to change.