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Sharks Rule, Rule
(slrpnk.net)
Be sure to follow the rule before you head out.
Rule: You must post before you leave.
Wow, this is one of the most complicated Snopes analyses I've seen. But it seems like the statement is accurate with caveats. If the brightest component of Polaris is probably 50 million years old what was there before wasn't really Polaris. And then it doesn't make a difference whether sharks have been around for 450 million or 195 million years.