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Rhetorical questions

Rhetorical questions and questions which the questioner immediately answers are

frequent in academic contexts, since writers and speakers often wish to anticipate

questions readers and listeners may be posing in their minds, or else wish to raise

those same questions in the mind of the reader/listener prior to answering them:

If the northwest-European-origin slaveowners had operated as if the slaves

resembled life-cycle servants, 

what might we expect to observe?

Why is it that quasar activity declined in the universe both at high redshifts and

at low redshifts? If the conventional picture of quasars is correct, then …