Christopher ThielenI love this table column:
“Four or five times a week”
“Every 6 years”
…
“Every 4776 years (once in recorded history)”
“Every 1.07 billion years (four occurrences in the history of Earth)”
…
“Once every 2.2 trillion years (never in the history of the Universe, once during the life of a red dwarf)”
https://en.wikipedia.org/wiki/68–95–99.7_rule#Table_of_numerical_values
