If something hasn't happened yet it indicates that if it does happen it will happen later. For example, since pigs haven't flown yet, if they do fly, it will ha

If something hasn't happened yet it indicates that if it does happen it will happen later. For example, since pigs haven't flown yet, if they do fly, it will have to be later. Seriously, though, I think the researchers were trying to put a positive spin on a negative result but went too far.