It lasts longer then something in RAM when the power goes out.
Humans have not been storing this amount of information for very long, it
is
new to us. I figure in 100 years we will have mastered
the art of storing
everything in a way that will be the easiest to get lost permanently so
the
digital paper pushers of that era can re patent
everything and make more
money (while people try to figure out how to make a wheel and start fires
all over again).
Sorry, to jump in a few days late but with people pushing for using "cloud"
services I believe we are pretty much already there (e.g. YouTube, Flicker
etc.). Personally, I much prefer having originals in my possession and only
having backups in online accounts.
Regards,
Andrew B
aliensrcooluk at yahoo.co.uk