When you've heard one bagpipe tune, you've heard them both.

It may be that the strongest instinct of the human race, stronger than sex or hunger, is curiosity: the absolute need to know. It can and often does motivate a lifetime, it kills more than cats, and the prospect of satisfying it can be the most exciting of emotions.

And that, my friend, is how the world ends. On the edge of a precipice, with one foot over the edge, it stops, turns and goes back, leaving an empty earth of birds and insects, wind, rain and rusting weapons.

Maybe I live in what is for me the wrong time.

As Einstein himself pointed out. He said we’re like people in a boat without oars drifting along a winding river. Around us we see only the present. We can’t see the past, back in the bends and curves behind us. But it’s there.