Bit=0 or 1
We are currently in transtition from the era of Gigabytes to Terrabytes. Already, there are predictions that by next year there will be a Zettabyte of information on the Net. Assuming Moore's Law remains true, what will we be capable of in a era of Udabytes, and how soon will that be? Keep in mind at this early juncture we've already got enough storage to store a entire human genome. Its also worth noting that I entered high school in the era of Megabytes and by the time I had graduated we were firmly in the realm of Gigabytes. Over my stay in Maine I read Down and Out in the Magic Kingdom by Internet demigod Cory Doctrow (I highly reccomend it, by the way). Perhaps we aren't quite as far away from a world of complete mental backups and digitally imparted imortality.