In Apocalypse Next John talks about a few ways that we, as humans, may see an end to ourselves. Ends that can be controllable, changeable. But, it will require work from us to do so. This isnt going to be an episode of what to do after the world has ended, or how to prepare for such an event. It's a discussion of just a few of the changeable human factors that currently may be leading to the end of humanity.