Lyric discussion by JimmyDiggs87 

Cover art for Copy of A lyrics by Nine Inch Nails

"I am just an echo of an echo of an echo listening to someone's cry for help" I think this refers to the perpetual state of existing in a series of moments after we were born, reflecting back on ourselves through our memories. We are simply copies of our past selves, which in turn are reassembled copies of our parents, their parents, and so on.