We have used content addressing to handle a file. If the file is big, we can split it and get the root hash with a Merkle tree. In this case, we only care about the content of the file; we don't even save its name.
There is a situation, however, where the name of the file does matter. For example, let's say that you want to save a file directory that contains 100 images of cute pandas. The names of the files in this case don't matter; what we care about is the content, the pictures of the cute pandas! If this is a directory of a programming project, however, the names of the files do matter. If one Python file tries to import another Python library that is contained in a different file, we have to keep the ...
