Without intention behind it, or if it gets corrupted, that which passes through a data channel is noise. Another way to define noise is as something whose structure you can't fathom, or whose language you don't speak. It's hard to objectively claim that the babbling voices we hear from the crossing over of FM radio channels during hot summer nights don't, in some distant space, constitute a language. Like the old joke about an infinite number of monkeys banging away infinitely on typewriters and one eventually writing, word for word, Hamlet, this illustrates that no matter how complex the universe we are all variations within the infinite.