1. as borg always does FULL backups, it needs to access all files' metadata anyway. that together with borg's "files cache" enables borg to quickly detect and b

1. as borg always does FULL backups, it needs to access all files' metadata anyway. that together with borg's "files cache" enables borg to quickly detect and back up unchanged files. the created archive always contains ALL files. 2. for many users not that important for the daily backups, because they are quick anyway. for first backup or for users with huge daily changes, it would be nice to have though, that's why it is on the long term TODO. if you want to put more load on the CPU, you can partition your input data, feed each partition to a separate borg process (and separate borg repo). multiprocessing instead of multithreading.