Is this a tired phrase? -- journal article titles that start with "Towards a theory of..." Many journal articles start with the phrase:  &quot;Towards a theory of...&quot;, as in these real examples from diverse fields:

&quot;Towards a theory of innovation in services&quot; (Management)
&quot;Towards a theory of soft terms for the supersymmetric Standard Model&quot; (Physics)
&quot;Towards a theory of communicative competence&quot; (Sociology, Linguistics)
&quot;Towards a theory of parallel programming&quot; (Computer Science)

My literal interpretation is that a full theory is not being presented; instead, the article presents useful elements or steps.
But I wonder if this phrase is overused and tired. It seems like it could be a mask or even false modesty, perhaps to deflect criticism. My inclination is to avoid it if my article actually presents a theory, or most elements of a theory.  I would be inclined to use it only if the article was presenting a primarily a directional argument, i.e. &quot;go this way, and not that way&quot; to make progress on this theory.
Based on this data from Google Ngram Viewer, English books, it seem like it is declining in popularity:

Question: Do you think this phrase is tired, and therefore should be avoided when possible?  Or do you think it is valid and should not be avoided?
I'm looking for answers that are based on experience, conventions, and norms in particular fields and institutions.
I think this phrase should be avoided when possible: not because it's tired, but because it is hesitant and unspecific.

A title like Towards a theory of branch sprockets tells me that the author wanted to present a theory of of branch sprockets, but they didn't quite manage and they ran out of time. That's not a bad thing in itself, but it's a weak pitch for a paper. The best way to structure your paper is to think of what what you're presenting and put that in the title. Here, you're thinking of what you wanted to present, but can't.

I would prefer a title like A partial theory of branch sprockets or A fast, approximate algorithm for branch sprockets optimization. The point of a title is to let me know whether I should read this paper instead of the other 50 papers I could be reading. These titles tell me what the return will be on the investment of reading. With the Towards a theory... approach, the authors are only telling me what their long term goals are, not which step they took towards this theory, towards which theory in particular they hope to be moving, what steps still remain, and so on.