Yes, exactly that. I had to follow a few links, but Ars Technica has a better story. To quote: "It also massively increases the granularity of object time-stam

Yes, exactly that. I had to follow a few links, but Ars Technica has a better story. To quote: "It also massively increases the granularity of object time-stamping: APFS supports nanosecond time stamp granularity rather than the 1-second time stamp granularity in HFS+. Nanosecond timestamps are important in a modern file system because they help with atomicity—in a file system that keeps a record of writes, having nanosecond-level granularity is important in tracking the order of operations." Full thing is at: https://arstechnica.com/apple/2016/06/digging-into-the-dev-documentation-for-apfs-apples-new-file-system/ https://arstechnica.com/apple/2016/06/digging-into-the-dev-d...