SkepticLance Posted August 16, 2008 Author Share Posted August 16, 2008 To Sayonara I concede your point. I believe that near intelligence has occurred only in the last 50 million years, which is not the same as proving it to be a fact. It is possible, though I would consider it unlikely, that some more ancient cephalopods, and possibly some dinosaurs had near intelligence earlier than that. However, I have seen little good evidence to prove my belief wrong. Perhaps you have such evidence? Link to comment Share on other sites More sharing options...
Sayonara Posted August 16, 2008 Share Posted August 16, 2008 I think the problem we have there is that any evidence for it would be unlikely to survive the test of time. I don't think there is anything wrong with setting a limit such as your 50 million years based on what we do know, as long as we acknowledge the uncertainty in the figure with a caveat. Link to comment Share on other sites More sharing options...
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