Will mediated public speaking ever replace face-to-face speeches as the preferred format for presentations? Explain your answer.

Some colleges have created courses in which all lectures are presented online. Does this format improve the quality of education? Why or why not?

How is preparation for a face-to-face speech similar to that for a mediated presentation? How does preparation for these two formats differ?

For which careers would you expect mediated presentations to be used most often, and for which would you expect most speeches to remain face-to-face?