Also, it's possible that the various proxy wars that have been fought since WWII have killed more people than a hypothetical knock-down, drag-out WWIII would have. But the point stands, you can argue both ways.
>it's possible that the various proxy wars that have been fought since WWII have killed more people than a hypothetical knock-down, drag-out WWIII would have
Mmm, no, I'm pretty sure that's not possible. It would be possible to have some kind of super-low-casualty 'world war' with fewer deaths than those, but not a knock-down, drag out world war.