An interesting question is whether there exists a diff algorithm

which *minimizes* data movement across the network. Assuming similar

lengths, you can halve it by running the diff at one of the hosts

but can one do better if the two files are fairly similar? Is this

even a theoretical possibility? I don't see links to any such

algorithm on wikipedia's diff page but I figured there might be

someone on TUHS who may have speculated or know about this!

Bakul