Whatever is more useful goes first.
For example, if this we’re a list of UI text strings, finding all of the dialogue options together might be useful.
If, instead, this is a series of variables already around one dialogue, then finding the open or close bits together would be useful.
Imho
Ipv4 and peak oil are similar.
We’re constantly running out; but every fes years, we figure out a new way to extract more oil/make do with the addresses we currently have.
Someone sells of their underused block, or more people move to the services with excess IP addresses if they need one.