Saturday, September 11, 2010

Book Report: A Short History of Nearly Everything

Bill Bryson's A Short History of Nearly Everything is not so much a policy book. However, I will include it here because it has affected my world view. There are three things that I learned that hit home with me.

First, science is sometimes wrong. This should not be an excuse to dismiss science, but to instill a little bit of humility. The world is a complicated place and we only understand the tip of the iceberg, to use an apt cliche. This is more true in areas where we are developing new information and trying to break new ground.

Second, the world has been around a really long time. We have been around a tiny fraction of that time (if the earth's history were the equivalent of one day, humans would represent 1 minute and 17 seconds and our recorded history just a few seconds). This is just to make you feel a little less significant - to knock you down a peg.

Third, we are here, in this moment, due to a whole lot of luck. The end of the last ice age allowed humans to develop agriculture and thereby expand and we are lucky to not have another one (temperatures would decrease 10F). Too many genetic mutations to count evolved species, which eventually lead to us. I cannot express to you though how random and non-linear that process was. The end of the dinosaurs allowed mammals to flourish. The composition of the earth's crust, with a liquid outer core, produces the magnetic field that likely protects us from otherwise deadly radiation from the sun. And finally, although we suffer from periodic natural disasters, we have been free so far from major disasters that have affected the earth - like meteors or massive volcanoes like the one under Yellowstone Park.

I highly recommend this book. You will learn a lot about science and the history of how we know what we know. And hopefully it will make you even more curious about how scientific knowledge is developing. One thing is for certain though, you will be thoroughly entertained the whole time. Bryson has a dry wit and a good eye for the interesting part of each story.

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