From Neil Hogben
I believe there is a reason behind time appearing to speed up as we age (31 January, p 54). It is simply that the perceived duration of a defined period of time depends on the proportion of our life to date it would represent. I am now 91, so according to this idea each year seems to last about 10/91 (or about 10 per cent) as long as when I was 10. I can confirm that this is about right.
Claygate, Surrey, UK
