Say what? Calm down, buddy. I'm not quite as "STUPID" as you suggest. This entire line of discussion began as "debate" about how good or bad Viren was between Munich and Montreal. Of course Viren was physically gifted--that should go without saying. However, I provided a summary of his actual record in that period to counter the implication that he was consistently "good" on the world stage between '72 and '76.
You have provided reasons for Viren's "mediocity" during the '73, '74, '75 seasons without disproving that "mediocrity" (terms being relative here to the standards of world-class). I stated above that Viren was on top of the world in the '72 and '76 seasons but that--by any objective criteria--if his historical stature was to be judged ONLY by his 3 seasons in between, he'd be merely an athletics historical footnote. I really don't see how that's debatable. Few other 5th or 7th or 9th place world-rankers from that period are considered athletic gods today.
It's entirely possible that your explanation for his less-than-stellar performances in '73-'75, AND the assertions of Viren benefitting from a systematic blood-doping regime are BOTH TRUE. Your assertion that Viren "didn't need" anything other than his own ability to run 13:16 and 27:38 is not convincing, to me at least.