Reply #74: Yes, it actually is.

[Political Heretic]

They may both be equally important, OR they may not be separable, i.e. working on one may necessarily imply address the other.

There may be no "first, than this."

The either or is your assumption that it is EITHER I work on this first, OR I work on this first. While it may possibly be both/and, or it may really be a false division in the first plcae.

BTW alphabetizing doesn't work as an example, because you're not asking someone to categorize anything, your asking someone to priority and assuming that the things you are describing are actually different, or of different priorities, or separable - and ignoring the possibility that they are the same, inseparable, or of equal priority, or some other alternative altogether.