Exercise 2: When Extreme Specificity Still Fails FINER — Possible Solution
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The proposed question is genuinely specific in the PICO sense - it
names a precise population, a precise intervention amount, and an
implied outcome (memory). But specificity alone doesn't satisfy FINER.

The clearest failure is FEASIBLE. Narrowing the population to
left-handed adults aged exactly 34-36, living in cities with a
population between 200,000 and 210,000, who also drink exactly 2.3
liters of water per day, creates an extremely small real-world pool of
eligible participants. Recruiting a large enough sample to draw any
reliable conclusion would likely be genuinely impractical within
realistic time, budget, and access constraints.

A second likely failure is RELEVANT. Even if the study were somehow
completed, a finding this narrowly scoped would say very little about
water intake and memory in the general population - the extreme
specificity actually limits how much the answer would matter beyond
that one very particular group.

The broader lesson: PICO's job is to make a question well-formed and
unambiguous, not to make it maximally narrow. A question can be
extremely specific and still be a poor one to actually pursue if that
specificity makes it impossible to feasibly study or means the answer
wouldn't meaningfully generalize to anything anyone actually needs to
know.

ANSWER: The question most clearly fails FEASIBLE (the eligible
population is too small and narrow to realistically recruit and study)
and likely also fails RELEVANT (an answer this narrowly scoped
wouldn't meaningfully inform anything beyond that exact group).
Extreme specificity satisfies PICO's structural requirements but
doesn't by itself satisfy FINER's separate question of whether a study
is actually practical or worth doing.

WHY THIS WORKS AS AN ANSWER
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This correctly distinguishes PICO's structural specificity from FINER's
practical/value judgment, names the specific FINER criteria that fail,
and explains why using the real definitions given in the chapter.