Our bodies are machines. A mass of gloo containing a flesh bag that holds massive volume of muscles adhered to the cylinderical bones, networked by nets of nervous systems, controlled by a gray mass of gloo sewn to a soul that controls it, with a power of freewill gift, is the true definition of human. Maybe somewhere in air, earth, fire or water there's an entity that have no motor control like us, with freewill gifts like us, but were able to find it by using those machines that we create, clearly indicates the similiarities between humans and the undefined entity, something, somehow expressed their desire to exist and to relate, expressed the same desire to be an common entity that shares the same experience or sensation, a medium that everyone understands to the most complicated level using only one word, which is "human". They might NEVER be a human, but shares EXACT same properties that humans have, thus qualifying them as an equal to "human".
And about CI, to err is human. 
