Thanks for getting back to me.
I'm pretty sure the phrase you were looking for is "exercise in
futility" as it is the only combination of words that seems to make
sense in the context you have provided.
An exercise in futility is an activity that does produce an expected
or hoped-for or worthwhile result. Shouting at the sky to "Stop
raining!" is an exercise in futility.
The internet is a great source for determining the popularity or
rarity of a particular phrase.
A Google search on "exercise in futility" (with the quote marks
included) produces over 100,000 results, putting it in the cateogry of
a fairly common phrase:
Here are a few examples from those results:
SEO Without Usability -- An Exercise in Futility
Powell and Arafat: An Exercise in Futility
Let's not make this an exercise in futility
I hope you get the idea (if not, my efforts have been an exercise in futility!).
On the other hand, if you Google phrases like "exercise in fruition"
or "exercise to fruition":
one comes up with only a handful of results, and as I mentioned
earlier, a fair number of these appear to be errors in usage.
I trust this information fully answers your question. However, please
don't rate this answer until you have everything you need. If you
would like any additional information, just post a Request for
Clarification to let me know how I can assist you further, and I'm at
All the best,