I’m on a big picture, big history kick right now. 

I’ve been reading a great history of Homo sapiens, and I’ve started listening to the audio version of Bill Bryson’s A Short History of Nearly Everything. 

Bryson’s book is a delightful survey of the biggest ideas and discoveries that explain what we know about the universe. 

What stands out is just how much we got wrong and how certain we were in our errors. 

The steps forward were usually dependent on those who were willing to embrace uncertainty and not-knowing, who could follow their curiosity rather than their egos.