Muddiest Point: Week 8 (unit 7)

I'm not sure that I understand why PURL is any better than regular URLs. It seems that if the creators do not keep up with updating a URL, the site will be lost just as URLs are when they move. Also, with this systems it seems unlikely that the more unusual and lesser used pages will be issued a PURL, and they often seem to be the ones lost as they move more often.