Cambrian explosion

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The Cambrian explosion or Cambrian radiation was an event approximately 541 million years ago in the Cambrian period when practically all major animal phyla started appearing in the fossil record. It lasted for about 13 – 25 million years and resulted in the divergence of most modern metazoan phyla.

Apparently, there is one happening at the moment, rendered in silicon and not carbon, and it is going to put us all out of work.

See also

• Technological unemployment
• We will all have more leisure time in the future