I am recalculating according to Ann Druyan's "Cosmic Calendar."
youtube.com/watch?v=Bl-…
"Every few weeks or so" = 1-2 billion years.
https://www.youtube.com/watch?v=Bl-s4tqR8Bc
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I am recalculating according to Ann Druyan's "Cosmic Calendar."
https://www.youtube.com/watch?v=Bl-s4tqR8Bc
"Every few weeks or so" = 1-2 billion years.