Russell Brunelle (russellb) wrote,
Russell Brunelle

Thoughts, partway through David Christian's "Big History" lecture...

I'm at the point in Earth's history when eukaryotic cells have emerged, and multi-celled life is about to take the stage. Thoughts and reactions so far...

  1. Even if you have a scientific background, it's easy to mentally mush together chemical reactions and nuclear reactions. To cultivate the appropriate level of appreciation for what was necessary to bring us to where we are, it's helpful to remind yourself that exploding stars were the only way the elements necessary for life could have been made.
  2. It's easy to underestimate the complexity involved in even the simplest cells: no matter how badly humanity messes up, the heavy lifting in evolution can't be undone.
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