Unless.....hmmmm......Unless, it just can't physically be done.
Right that was why I was hinting on the lock and key, but still there would be weaknesses. For instance like Bullshit pointed out, metal on metal I would expect that had a great potential for bending and breaking.
Mechanical engineers (I know quite a few, and believe me, they get a kick out of me and my tinkering), ... call the concept "Stupid Proofing".
I do agree though, it there is a way for users to mess it up, they will find it...same goes for systems design.
This concept is incorporated into almost everything they design from automobile design to PVC pipe and connector design. For example, it is impossible (without concentrated effort) to insert any element of PVC cold water pipe or connectors into the CPVC Hot water system of your house. The engineers made it "Stupid Proof". The engineers did not say: "Hey, the pipe is already a different color...that's got to be good enough." No, they make it physically impossible to mix up the pieces to the hot and cold water systems...and that is then "good enough".
Hey, Bill Gates may be the smartest man in the world, but he drives a car that has been "stupid proofed". I doubt if he feels insulted even though he is smart enough to remember to turn on the backup lights, every time he puts the car in reverse, but he drives a car that won't allow him to back up without the lights coming. The engineers saw to that, when they designed the transmission and electrical system.
But this usually only holds to a certain degree. I terms of your metaphor, the car will one have these functions on some of its functions. (I hate all the car metaphors but here we go) You can still bump into things with your car. You can still put the gear in forward and drive, even if you meant to go backwards. You can drive on a red light, and cut in front of someone. It is not technically impossible to change that, but it sure is expensive to designs a completely fool proof car. I think the same goes for kiting. It should have some safety, but at some point we have to be responsible for setting it up right. I am not unsympathetic to kiters who's kite goes into the tree, because they set the lines worng, but I guess when you put your kite down on the beach it is about time to wake up anyway.
Real engineers design stuff with double and triple redundancy. They don't do this to insult the intelligence of the end user of the product. They don't say to each other: "Hey, Les and Jeff, this design is good enough. Only an idiot would screw this machine up..." They don't arrogantly say to each other: "If someone isn't smart enough to use this device within our strict design parameters, they are hopeless imbiciles, and they should get a life, and wise up".
No but redundancies also goes on the expense of the end user, and total cost of product. For instance, (gahh back to the friggin' car metaphor) a new car is now launched with a system that can help pocket park your car. Many people will not buy this, because they already park their car fine. However for some it is nice. I think the same holds for kiting, maybe some are more distracted and have a higher need for it, and some does not. I think a kook proof system would be nice if it has benefits without adding too much complexity or price. I am very happy with the system that Naish is using. I have been using slingshot bar before on my Best kites, and I had no problems, but I think I have good routines while attaching the lines.
Real Engineers know that things do not always go as planned. They base their actions on the fact that real live people (1) don't always make good decisions (2) like to fiddle with mechanical things (3) don't always use devices for their intended purpose (4) are careless when distracted or under stress and (5) Bla, bla,bla ...I'll stop here.
I completely agree, and I have been through this while designing and implementing information systems, but I really don't think it is feasible to make a system for anything that can go wrong in kiting, but I'll be happy to accept anything that can be improved upon without adding too much price.
I apologize for using your statement as a springboard. I appreciate the detail, you include in your posts, and I really can't disagree with anything you said...but..I am wound up and it doesn't take much to set me off, today!
hehe, I know what you mean, no offense taken. I am still happy with the Naish system though.
I think your idea of using tape to mark the lines is good as well.