Histrorically It's When You Stopped Thinking
You appear to have missed all the massive amount of data which contradicts the Mariner 4 impression since then and all the books that mention the change from Mariner 4 views after Mariner 9. You inability to think is evidence by your lack of reply below as well. Your mariner 4 mantra is only more relevant than Barry's zubbie suit mantra. At least it was scientifically valid for a brief period of time many decades ago.
Regards,
Mark
