Double-edged sword --- As powerful this technique may be, it's also very risky as the listener can just as likely conclude something completely different from what the speaker had in mind (as a matter of fact, this the basic definition of misunderstanding).

So, to be sure you'll achieve the desired outcome, you should not only leave gaps but also influence the inference by prepping the listener through connotations, metaphors, examples, etc.

Source author: Andrej Skrinjaric andrejs@diplomacy.edu