If I don't have evidence for the claim and it hasn't been peer reviewed, the default position of course is to 'not believe' the claim.
personally I think the default should be to have no opinion on that matter, to decide one way before hand instead of comming to a new situation with an open mind will result in a bias that might be unfair. Basically you could be deciding what you think about it before you actually consider the arguements, much like some fundamentalist thinkers.
In regards to your claim, I am of course skeptical but not cynical. I am truly interested.
Thank you for sharing your experience. How successful are you, or your peers at this phenomena? Do you seem to avoid the shuriken 20%, 80% of the time? Does it seem like some are better than others at this? If so, what seems to be their '%' ? So you think it may be some form of telepathy?
When performing the blindfolded shuriken test people tend to get it about 80% of the time. One woman in our dojo has been 100% consistent with it everythime I have witnessed her practice.
Less experienced people tend to get jumpy and try to anticipate when the shuriken (or sword in some cases) is coming at them. The try to dart out of the way by guessing when it will come and occasionally they get luck, but they aren't doing the purpose of the exercise.
If I am administering the test I know when a person has done it correctly. If they move without me having made the decision to hit them, they fail. If I hit them and they don't move, they fail. When I send my intention out and they move out of the way a split second before I actually throw the shuriken or swing the sword, they pass.
I do not think it is telepathy. Telepathy to me means I know the details of your thoughts. This is more like "I feel like something is wrong". In the real world it is probably likely a person wouldn't be able to tell the direction it was comingfrom, but they would instinctly feel something is wrong.
A few years ago, I was wandering through the hallways of a school building and was about to leave, through the same doors I always do. That particular day I had a gut feeling to stay inside the building. I waited for about 10 minutes before shruggin it off. When I went outside, have a dozen college kids at NIU had been shot to death in the next building over. Had I ignored my gut feeling I would have taken my usual route to my car at the usual time and walked into the firing zone.
If you want to practice it to see how it works you have to go whole heartedly into it. The change in the air you feel is so subtle most people don't recognize it. But here's how you can give it a try.
1. Find something to throw or hit someone with. Something heavy enough to feel impact, but not so heavy it will cause injury. Foam swords, rubber shuriken, bean bags, something you can toss or smack someone with that will let them know they got hit if they don't move.
2. Turn on music loud enough that a person can't hear clothes rustling or the sound of things soaring through the air.
3. Have the person attempting the practice turn around or wear a blindfold and make sure they can't see you.
4. Repeatedly strike at them or throw things at them making sure you do not establish a predictable pattern or timing. Each time you decide to move you should have a thought of causing serious harm to the person. The intention to cause significant harm must be present because simply going through the motions does not generate any ki because your mind is not involved.
5. The person trying to sense the other's killing intent should first focus on what the air around his body feels like. He should imagine creating a bubble around himself and pushing it outword until it takes up the space of the whole room. Give him a moment to feel what the air is like before you decide to attack. He should obey any instinct he has to move no matter how ridiculous he feels it is.
Most people new to this will ignore the instinct to move, but if you watch carefully they often flinch when they should move because they don't trust what their body is telling them. Women tend to be better at this for some reason, but anyone who practices being aware of their surroundings tends to be able to do it at least half the time.
It's important for beginners that anyone on the training floor not participating in the exercise at that moment should think mundane thoughts so as not to interfere and throw off the practitioner with other emotions they may be having. Have those observing count to 10 over and over again while they watch.
If you try this you must really put an effort to make it work. If you go into it with a thought in the back of your head that it's nonsense you will ignore your instinct to move and be preoccupied with your own thoughts.