Visualizing Trillions

March 6, 2009 by Stephen J. Haessler

When I teach macroeconomics, we cover national income accounting and use lots of large numbers. I’ll ask students what they think the difference is between a million, a billion, and a trillion seconds of time, for a comparison of how these amounts might be related in dollar terms. The difference is jarring. A million seconds is about 11.5 days. A billion seconds is about 31.7 years. And the kicker is that a trillion seconds is over 310 CENTURIES! How many centuries since the birth of Jesus? Little over twenty-one.

And here’s a visual portrayal of what a trillion dollars looks like compared to a human figure.

Hmmmm. How much was in that stimulus package and omnibus spending bill again? What is the current national debt?


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