ELECTRODES

In actuality, we have no idea what exists outside of us. We experience the world from within ourselves, and we can never actually feel what is outside. For instance, I hear a sound, and lets suppose that there is some influence, or some source that creates a sound wave. The sound wave travels into my ear, hits the membrane, and initiates an electrical current and chemical reactions that my brain interprets as sound. By comparing what I now hear, with the prior experiences that are recorded in my brain, I realize that I hear some sound. In other words, I perceive the sound wave thats outside of me indirectly, after it was processed thousands of times inside of me. What I perceive is not the actual signal that exists outside of me. This is a simple example of why we are unable to actually determine what is outside of us. We can only describe what we perceive. However, this is all meant to bring us to a realization that this type of an existence is insufficient for us. We thus reach a conclusion th