Life is long, history short

So I was reading Alan Furst’s new novel “The Spies of Warsaw” when I was struck by a particular passage.   A typical Furst protagonist, the world-weary French Colonel Mercier, is attending a grand reception in Warsaw with a typical Furst heroine, the luscious and mysterious Anna Szarbeck.  It’s 1937, and war is coming. She’s chatting with various strangers:

“So, you’re with the League of Nations.”  The woman was in her seventies, Anna thought; her husband, with grand white cavalry mustaches, at least in his eighties.  “Such a hopeful notion, my dear, really.  A league, of nations!  How far we’ve come, in this dreadful world.  My husband here, the general, was the late-life son of a colonel in the Hussars.  In 1852 that was. A great hero, my husband’s father, he fought in the Battle of Leipzig and was decorated for bravery – we still have the medal.”

“At Leipzig, really.”

“That’s right, my dear, with Napoleon.”

The Battle of Leipzig was in 1813, and was the largest battle in Europe before WW I, involving 600K troops.  If the husband’s father was 21 then, he would have been 60 in 1852, when the general was born.  That’s old for a father, but not terribly old.  Of every 100,000 births, between 20 to 100 are to men of that age.  If the general himself had had a child at 60 in 1912, that child would be 97 today.  Again, old, but not unheard of. Adjust those ages a little bit, and a man who had a son at 70 who himself had a child at 70 would have a grandchild who would now be 76.

So a person living today could have a grandfather who fought in the Napoleonic Wars.  It only takes three lifetimes to cover the modern era.   Three lifetimes to go from sailing ships to robots on Mars.   Three lifetimes to cover the Industrial Revolution, the rise of democracy, the 10X explosion in world population.

But then, all of human history is short, maybe 5000 years.  My own lifetime covers 1% of that, and I’m just some guy.  It would only take 100 lives like mine to cover it all.  You too have probably personally experienced a significant percentage of all of history.

How can that be?  Maybe because of that population explosion.   The total number of people who have ever lived is somewhere around 100 billion.  There are almost 7 billion of us right now.   If you ever lived, there’s a 7% chance that you’re alive right now.

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2 Responses to Life is long, history short

  1. mtraven says:

    On the other hand, the earlier you lived, the greater the percentage of human history you personally experienced.

    Reminds me of this argument for why we are necessarily more doomed than we think, based on the statistical properties of observer bias.

  2. Pingback: Deep Thoughts to Help Us Feel as Though Our Lives Are Longer (The Arrow of Time #3) - Spirited Thinking

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