[arin-ppml] Draft Policy ARIN-2021-1: Intentional distinction?

[John W. O'Brien]

Good day PPML,

With Emerson's admonition, "A foolish consistency is the hobgoblin of 
little minds, adored by little statesmen and philosophers and divines.", 
firmly in mind, I wonder about a few lingering inconsistencies in the 
proposed changes.

Of the different ways that IPs are referred to in the proposed 
replacements, are any intended to have a different meaning or 
implication than the others?

*   "IPv4 address space" (8.2)
*   "IPv4 address resources" (8.3, 8.4)
*   "IPv4 addresses" (8.4)
*   "IPv4 address blocks" (8.5.6, 8.5.7)
*   "IPv4 space" (8.5.6)
*   "space" (8.5.7)

My impression is that there is really only one kind of entity in play 
here, the canonical name of which is "IPv4 address resource(s)". 
"blocks" strikes me as semantically equivalent insofar as a block is the 
unit in which address resources are measured. "addresses" and the 
variations on "space", imply---or at least encompass---collections of 
individual addresses that are non-contiguous and/or non-co-terminal with 
CIDR boundaries.

-John
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