Everybody knows how a satnav works. Why are so many writers such try hards?

"The touch-screen affixes to the windshield; when I want to go somewhere, I just type in the address. It consults its on-board map database, and in just a few seconds, the screen view changes to show me a representation of my car as if I were following behind myself in a helicopter, watching in special goggles that show a symbolic map of the area ahead, with my route through it highlighted in purple. As I drive, my car stays centered on the screen as the imaginary helicopter follows behind, the view updating every couple of seconds. The device also relays directions to me turn-by-turn: at every moment it displays onscreen what my next turn will be, and as I approach the turn, a computer voice announces it."