I do appreciate the future proofing of gnu coreutils's "free" command having a --pebi (show output (of RAM) in pebibytes), at the current right I think that might be a little preemptive

# free --pebi
               total        used        free 
Mem:               0           0           0 
Swap:              0           0           0

Suppose you could probably(?) configure a PiB of Swap though...

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