After reading the section of our textbook on lying, and ways to detect it, I wonder if it will ever be possible to detect if one is lying, with 100% accuracy. I find it interesting that one of our main lie detecting techniques, the polygraph machine, was invented almostone hundred years ago, and we still have not found a more accurate way to detect lies. How many things that were invented one hundred years ago have not been improved to be more effective? Especially one as important as a polygraph machine, that has the power to determine the guilty and the innocent!
Imagine if we were able to develop some way to determine if someone was telling the truth, by simply asking them? If we could determine someones guilt, or equally as important, there innocence, think of all the time and money that could be saved by not having so many long, and drawn out court cases! If this was possible, we could eliminate the possibility of sentencing innocent people to prison! 
Whether or not it will ever be possible to test if someone is lying is unknown. It is very possible that this idea is nothing more than a dream. But I believe that more time and energy should be invested in to determining the possibilities because the results of this discovery could lead to extraordinary things.
Interesting topic! Detecting lies is really a difficult task. Using polygraph machine has some biases. However, I believe that some day there will be a reliable device that detect lies. All in all, nice job! And thank you for sharing your idea!