Questionnaires by psychologists have shown that almost everyone – including college students – feels that time is passing faster now compared to when they were half or a quarter as old as now. And perhaps most strikingly, a number of experiments have shown that, when older people are asked to guess how long intervals of time are, or to ‘reproduce’ the length of periods of time, they guess a shorter amount than younger people.
We usually become conscious of this speeding up around our late twenties, when most of us have ‘settled down.’ We have steady jobs and marriages and homes and our lives become ordered into routines – the daily routine of working, coming home, having dinner and watching TV; the weekly routine of (for example) going to the gym on Monday night, going to the cinema on Wednesday night, going for a drink with friends on Friday night etc.; and the yearly routine of birthdays, bank holidays and two weeks’ holiday in the summer. After a few years we start to realise that the time it takes us to run through these routines seems to be decreasing, as if we’re on a turntable which is picking up speed with every rotation. As the French philosopher Paul Janet noted more than a hundred years ago: Whoever counts many lustra in his memory need only question himself to find that the last of these, the past five years, have sped much more quickly than the preceding periods of equal amount. Let any one remember his last eight or ten school years: it is the space of a century. Compare with them the last eight or ten years of life: it is the space of an hour .... This speeding up is probably responsible for the phenomenon which psychologists call ‘forward telescoping’: our tendency to think that past events have happened more recently than they actually have. Marriages, deaths, the birth of children – when we look back at these and other significant events, we’re often surprised that they happened so long ago, shocked to find that it’s already four years since a friend died when we thought it was only a couple of years, or that a niece or nephew is already ten years old when it only seems like three or four years since they were born.
So why do we experience this speeding up of time?
We usually become conscious of this speeding up around our late twenties, when most of us have ‘settled down.’ We have steady jobs and marriages and homes and our lives become ordered into routines – the daily routine of working, coming home, having dinner and watching TV; the weekly routine of (for example) going to the gym on Monday night, going to the cinema on Wednesday night, going for a drink with friends on Friday night etc.; and the yearly routine of birthdays, bank holidays and two weeks’ holiday in the summer. After a few years we start to realise that the time it takes us to run through these routines seems to be decreasing, as if we’re on a turntable which is picking up speed with every rotation. As the French philosopher Paul Janet noted more than a hundred years ago: Whoever counts many lustra in his memory need only question himself to find that the last of these, the past five years, have sped much more quickly than the preceding periods of equal amount. Let any one remember his last eight or ten school years: it is the space of a century. Compare with them the last eight or ten years of life: it is the space of an hour .... This speeding up is probably responsible for the phenomenon which psychologists call ‘forward telescoping’: our tendency to think that past events have happened more recently than they actually have. Marriages, deaths, the birth of children – when we look back at these and other significant events, we’re often surprised that they happened so long ago, shocked to find that it’s already four years since a friend died when we thought it was only a couple of years, or that a niece or nephew is already ten years old when it only seems like three or four years since they were born.So why do we experience this speeding up of time?
One popular answer is the ‘proportional’ theory, which suggests that the important factor is that, as you get older, each time period constitutes a smaller fraction of your life as a whole. This theory seems to have been first put forward in 1877 by Paul Janet, who suggested the law that, as William James describes it, “the apparent length of an interval at a given epoch of a man’s life is proportional to the total length of the life itself. A child of 10 feels a year as 1/10 of his whole life – a man of 50 as 1/50, the whole life meanwhile apparently preserving a constant length.”2 At the age of one month, a week is a quarter of your whole life, so it’s inevitable that it seems to last forever. At the age of 14, one year constitutes around 7% of your life, so that seems to be a large amount of time too. But at the age of 30 a week is only a tiny percentage of your life, and at 50 a year is only 2% of your life, and so your subjective sense is that these are insignificant periods of time which pass very quickly.
There is some sense to this theory – it does offer an explanation for why the speed of time seems to increase so gradually and evenly, with almost mathematical consistency. One problem with it, however, is that it tries to explain present time purely in terms of past time. The assumption behind it is that we continually experience our lives as a whole, and perceive each day, week, month or year becoming more insignificant in relation to the whole. But we don’t live our lives like this. We live in terms of much smaller periods of time, from hour to hour and day to day, dealing with each time period on its own merits, independently of all that has gone before.