I guess that intimations of mortality strike us all at various points in our lives. While growing up we see our future as a blank page rife with possibilities. Will we be singers, actors, artists, sportsmen, explorers? Perhaps more simple futures lie ahead of us? Tinker, tailor, soldier, sailor, candlestick maker? While at university I suddenly noticed that I was now older than the bright young things achieving fame for their sporting or artistic endeavours. The slamming of doors echoed through my head. Not that I’d had plans in any of those directions, but still it was the moment of recognition that my life would be that of a pond-skater rather than a wave-maker. Impinging on the public eye is one way to leave a lasting impression, but in our private lives we have a myriad of effects on those around us. My imagination is rife with scenarios of raising my kids, showing them the world, giving them insights into the science and mechanics behind it, teaching them to see the complexi