Today, technology has most of us—no offense intended to my Luddite friends—rather jaded. It's a little difficult to muster the sense of wonder in a world where it's possible to fabricate food from a 3D printer or physically shake hands with the person on the other end of a Skype call. So this 1931 ad touting the 'magic' of the humble ice cube is a reminder of not just how far we've come in the hardware and software spheres, but also of the evolution [or, arguably, de-evolution] of our priorities.