“It’s going to go fast,” my dad said to me on the eve of my high school graduation.  And like a typical teenager I didn’t believe him. How could I?  Judging by the experience of my first 18 years, I expected the next 18 to feel just as long.  There was plenty of time to waste.

But of course he was right and I was wrong.

I’ve found that the second half of my life has been no where near the length of the first.  And now I expect the next 18 years to pass quicker still.  At some point we each begin to feel that time is speeding up with age.

The question I now have is just how fast my life is going to pass?  How much time or more accurately the feeling of time do you and I have left?  If the theory of time speed-up discussed in my last two posts (here and here) is at all correct the answer is a jaw-dropping less than we want to think.

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Why We Feel Time is Speeding Up

There are a number of good explanations for why time feels to be speeding up with age.  But the most objective and therefore measurable is found in the ratio of time to life.

As a percentage of our life, each new moment is less than the one before.  For instance a year when we were 1 was the whole of our life but at 2 it was half, 3 a third and so on.

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But unlike what the multiple charts above might suggest we don’t equally rearrange every passed moment to accommodate for the new.   Newer moments are simply compressed to a greater degree.  Like a car shortening the intervals between the lines on the road, this increasing compression is what gives us the perception of time’s acceleration.

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See my post Why We Feel Time is Speeding Up for more.

Time Speed Up Over a Lifetime

A pie chart of this change over 99 years and overlaid by the familiar marks of the clock shows us how the transformation applies directly to our lives.

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You would think an 18 year old who’s guaranteed to live to the ripe old age of 99 would have great deal of time left to live.  But not when adjusted for experience.   They have slightly less than 20 minutes left.  2/3 of their experience has passed between birth and the age of 18.

Again I’m not saying that time is literally speeding up.   The number of things you can accomplish during a day is always the same.  At the age of 60 you’ll still be able to brush your teeth in the same amount of time as you did when you when were 20.  And depending on the traffic it will still take you the same amount of time to drive to work.

It isn’t that the clock is speeding up.  It’s the declining proportion you feel in each new experience.

Look at the clock.  The same “5 minutes” of life is experienced in the

  • 4 years between 7 and 10
  • 6 years between 11 and 16
  • 10 years between 17 and 26.
  • 14 years between 27 and 40
  • 23 years between 41 and 63

It simply takes longer and longer to match the experience of youth.  And time is simply running out.

Where We Are On the Final Count Down

The 99 year old was over the hill at the age of 8.   The first 7 years of time experience was equal to the last 92.

Count the pieces and find where you’re at.  If you live to 99, how much time do you have left?.  Chances are you won’t like what you find.  But it’s good to number your days (Psalms 90:12).

When as a child I laughed and wept,

Time crept.

When as a youth I waxed more bold,

Time strolled.

When I became a full grown man,

Time RAN.

When older still I daily grew,

Time FLEW.

Soon I shall find, in passing on,

Time gone.

O Christ! wilt Thou have saved me then?

Amen.

Time Paces by Henry Twells

This post is the third in a three part series.

Part 1: Why We Feel Time Speeding Up With Age

Part 2: How to Compare Time Speed Up Between Ages

Post-It Notes (1/25)

January 25, 2013 — Leave a comment

The Myth of the Widows Mite

This passage is not for us. We are not to emulate this woman who is being taken advantage of. If anything it’s a warning to us that we do not do the same, and put not our trust in broken systems that enslave us to works righteousness and the law…

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Post-It Notes (1/24)

January 24, 2013 — Leave a comment

As public religion declines, faith goes to the movies

American society as a whole is becoming increasing secular. But does that mean that Americans are not interested in religion and spirituality, that we are no longer asking the big questions of meaning and faith? Not if our movies are any indication.

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Have you ever calculated how old you are in dog years? Or figured out what your age would be if you lived on Mars?

I know I have. Who hasn’t?

The formulas are simple enough. Humans live on average seven times longer than a dog so all you need to do is multiply your age by seven. And since Mars takes about twice the number of days to rotate around the sun all you you need to do is divide your age by two.

But have you ever figured out the difference in the feeling of time between the older and younger you?

We all have this sense that time is speeding up as we get older. I was reminded of this recently when the prospect of a 45 minute car trip brought my son to tears. 45 minutes of course doesn’t feel long to me NOW but I remember how it once felt substantially longer.

So how does 45 minutes at the age of eight compare to my experience at the age of thirty-five or perhaps more importantly what will 45 minutes feel like to me when I’m eighty?

In this post I want to show how you can simply and accurately compare your experience of time with those of a different age.

Arrepentirse

Why We Feel Time is Speeding Up

While there are a number of reasonable explanations for why time feels to be accelerating there’s only one that is any sense measurable.

Time speed-up is not entirely subjective. The feeling is a result of adding moments to our lives. Just as printing more money devalues the dollar so adding new experiences decreases the feeling of time. Each moment, as a ratio of your life, is literally becoming less than the one before. See my post Why We Feel Time is Speeding Up for more on this.

This rate of change is the same for every one. And because it’s the same, it’s possible to compare the feeling of speed between any two ages. Here’s how.

Comparing the Older Person to the Younger

So you want to know what 45 minutes at the age of 8 feels like to 35 year old or what 45 minutes at the age of 35 feels like to an 80 year old.

Use this formula when you want to know what the younger person experience would feel like to the older person.

  1. Divid the older persons age by the younger persons age.
  2. Multiply the given period of time by the answer to step 1

The equation looks like this: Time(Older Persons Age / Younger Persons Age).

What does 45 minutes at the age of 8 feel like to a 35 year old?

Answer:45 x (35/8) = A 35 year old would need to wait 197 minutes to experience what 45 minutes feels like to an 8 year old.

What does 45 minutes at the age of 35 feels like to an 80 year old? Answer: 45 x (80/35) = An 80 year old would need to wait 102 minutes to experience what 45 minutes feels like to a 35 year old.

Comparing the Younger Person to the Older

Now you want to know the reverse. What does the older persons experience of time feel like to the younger person.

  1. Divide the older persons age by the younger persons age.
  2. Divide the period of time by the answer to step 1.

The equation looks like this: Time / (Older Persons Age / Younger Persons Age).

What does 45 minutes at the age of 35 feels like to an 8 year old. 45 / (35/8) = Answer: An 8 year old would need to wait for 10 minutes to experience what 45 minutes feels like to a 35 year old.

What does 45 minutes at the age of 80 feels like to a 35 year old. 45 / (80/35) = Answer: A 35 year old would need to wait 20 minutes to experience what 45 minutes feels like to 80 year old.

Further Reflections

It’s interesting and fun to compare our experience of time with others. What’s not so fun, however, is finding out how much experience you might have left. I’ll tackle what this theory says about our future in my next post If Time is Speeding Up How Much Time Do We Have Left

Post-It Notes (1/23)

January 23, 2013 — Leave a comment

Should Christians Watch or Particpate in MMA (Mixed Martial Arts)?

There is no media that anyone participates in or observes that is neutral. Everything must be filtered through God’s Word. Hold onto what is good and hate what is evil (Phil. 4:8-9, 2 Cor. 10:5). So, how does a Christian watch Mixed Martial Arts (MMA) unto the glory of God?

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