Without One Of Each?

We could stand on one foot, I suppose, but we certainly could not walk. Not only do you need two to tango, but you also need two in order to make forward (or backward) locomotion. Not locomotives, just locomotion. Ambulation, as an example.

We could not pat our heads and, simultaneously, rub our stomachs without having two hands. The “cocktail party effect,” where we can pick out one voice from another at a gathering, would be impossible – as any person wearing a hearing aid can tell you. You can shrug your shoulder, but it’s a lot better when you do both at one time.

What’s not equidistant from the center is right there in the middle, thus keeping us balanced. Amazing.

Well, amazing except for our faces. They are not quite the same left vs. right. If you make a photo of one side of a person’s face and put it over where the other side would be, you might not recognize said friend. We aren’t built quite the same above the neck, odd as it might seem.

We recognize people by the lack of symmetry in their faces, not because of it.

So now I shall walk, not hop, to the studio for my regular two-handed radio program, during which I will have some tea with one hand while occasionally bringing up an insert with the other and listening with both ears.