So many voices. All the cries, conversations and laughter that we can’t hear. Imagine the endless chatter if the voices from those who have gone before could crawl into our ears. Imagine if we could discover a natural sound recording mechanism and start playing back recordings of every moment of human history. Not just the great speeches, but every trivial word, every embarrassed giggle, every exclamation. How we would laugh at our small, silly and arrogant selves!