There have been more cases of 'almost epidemic but for action by health officials' with SARS and avian flu etc which makes it 'common sense' that these things occur pretty frequently and would be happening more often naturally if not for luck and structures in place to mitigate them. Those structures also happened to be dissolved by the US leaders in charge at the time, which seems to fit the puzzle.
So, 'things happened before' are heavily tilted towards 'nature did it' in any case.
So tell me, looking at history, of all outbreaks that have occurred within 20 miles of a biolab studying the same disease family, how many were zoonotic versus lab accidental?
My common sense doesn't have that information on hand. Sounds to me like 'common sense' is a terrible way to try to investigate complicated things, eh?
