Understanding the story of "Big History" is crucial for our continuation as a species. If you're pressed for time, skip to 4:28 for the beginning of the known universe. Humans show up around 12:27. Our species may have avoided a few world wars, but given how fragile we are, an abrupt ending might be just around the corner. Instant and terrible death! Doom! The apocalypse! All right now y'all, enjoy the video.