Comments by "Lawrence D’Oliveiro" (@lawrencedoliveiro9104) on "Zero Size Files - Computerphile" video.

  1. On most filesystems, space for files has to be allocated in whole units of some minimum amount, commonly called the “cluster size” (1KB on your particular volume). So even if the data occupies just 1 byte, you still need to allocate one whole cluster to the file. Some filesystems add a concept called “tail packing”, where these small sequences of leftover bytes at the ends of different files are stored in a common shared cluster.
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