As far as I can tell, the pieces of paper are just pointers into a database. If you physically carried in a new sheet of paper it would be inert (or maybe the s

As far as I can tell, the pieces of paper are just pointers into a database. If you physically carried in a new sheet of paper it would be inert (or maybe the system would confuse it with some other piece of paper with the same dot-code). I can't help but think that the paper metaphor, while convenient for immediate manipulation, is ultimately a really clumsy way to store programs, especially given that it is an artificial abstraction around an ordinary filesystem on a Dynamicland server somewhere.