Paul Nelson: Testing for Common Descent (Signal + Noise?)

One of the first and most helpful things I learned is:

  1. There are rules in biology.
  2. There are exceptions to every rule in biology.
  3. The exceptions are important.

It seems that some are falling prey to the errors that arise from forgetting #2 and #3. The exceptions do not disprove the rule, even if they are important exceptions.

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