One of the benefits of having a 'sentient' process is that strategies for preservation could be implemented on a case-by-case basis as the time and needs arrive. Something that I'm sure PANDORA has considered, and I'd be very interested in hearing about more, are the ideas around not only the archiving the Internet, but how the systems of media are to be made available in 100, or 500 years time when we can only guess the relationship of user to digital networked media will be entirely different.
Cheers,
Melentie