While not perfect it may not have 0 value. I work in a somewhat esoteric part of finance and it is very easy to distinguish experts from people with a medium am

While not perfect it may not have 0 value. I work in a somewhat esoteric part of finance and it is very easy to distinguish experts from people with a medium amount of knowledge. It forces your adversary to become far more committed and use far more resources than they otherwise would. Although I could imagine using a watson like technology to obviate the need for a human to memorize all the required information.