Read the post from the blog Gidget Loves Gadgets.Guys, you know me. You know that there isn’t a device that I can resist. New technology! Yippee! Bring it on. But when I heard that they are soon going to bring cell-phone service to the subway tunnels I gasped. (Okay, maybe it wasn’t a gasp, but it sure was a sigh!) Are you really going to unleash at least twenty-five cell-phone calls in a crowded train at rush hour? Why can’t people just make their calls on the subway platform before they get on the train? This is one case where we can ask, “Just because we can do it, does it really need to be done?”
The blogger argues that cell-phone service should not be brought into subway tunnels, using the crowded rush-hour train as a reason and suggesting people call from the platform instead. The rhetorical question, “does it really need to be done?” encourages readers to agree with that opinion. The purpose is to persuade, not simply to entertain, instruct, or advertise.
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