There's a short story I quite like on the topic, not necessarily on its merits as fiction, but for having interesting ideas: http://everything2.com/title/Think+

There's a short story I quite like on the topic, not necessarily on its merits as fiction, but for having interesting ideas: http://everything2.com/title/Think+of+us+as+a+lost http://everything2.com/title/Think+of+us+as+a+lost