Imagine it's the year 1997. Aliens from the planet GNU have gone back in time and provided us with bittorrent, and technology making dial-up modems a million times faster (but they still drop their connection if your mom picks up the phone). You just torrented and watched the latest Seinfeld episode, "The Muffin Tops", and have forever changed your muffin-eating habits.
While watching, you saw ads for Apple's "Think Different" campaign, McDonald's Arch Deluxe, and that "Da Da Da" Volkswagen commercial (which is now stuck in your head). You go out and buy the car, buy a Mac, and buy a Big Mac because the Arch Deluxe tastes like crap.
In 2007 you watch The Muffin Tops again. The old ads from 1997 are still embedded in the file. Apple's ad seems weird since the logo is all rainbows. You drive to McDonald's to get an Arche Deluxe because now you're an adult and it'll taste good, but they don't have it anymore, so you cry and drive home to sign a petition website to bring it back. Nobody ever reads it. Along the way your Volkswagen breaks down and you remember how that terribly sounding ad tricked you into buying such an unreliable piece of junk. You get a lift from the aliens, but they charge you one anal probe for the ride. Now you hate Apple, hate McDonalds, hate Volkswagen, and hate that the aliens didn't have the common decency to at least warm up their metal tools before use. Ouch.