`he' vs `they'

The Problem

What pronoun to use, when the gender is unspecified?

One Solution

The first thing to note is that the problem can usually be resolved with a simple re-phrasing: But sometimes this isn't possible; what alternatives are there?

Other Easier Solutions

Some approaches, and their drawbacks: Other, less satisfactory?, approaches include:

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of any suggestions.
Last modified 2017.Jan.13.