While a useful feature, it's only remotely similar in that it keeps an incremental history of selected user folders, whereas Time Machine backups all files and

While a useful feature, it's only remotely similar in that it keeps an incremental history of selected user folders, whereas Time Machine backups all files and gives you a 1:1 (file-level, as opposed to block-level, like dd/carbon-copy-cloner/ghost) image of your computer, including the OS.