Nostradamus should never be taken literally. The prophecies he made are like those in The Bible. Complex - and very easily misunderstood.
And yes, Nostradamus has made mistakes. Or we see those propechies in that light. But we also might not understand.
If nostradamus was a prophecist, he saw visions of the world today. He saw a vision of what happened last tuesday. Of course he didn\'t understand what he saw, and so he wrote them in the matter of those days.
Same goes with the bible and it\'s predictions. It was humans who wrote it, after all. Believe in the spiritual side or not, it was made by humans, trough the voice of God. The propechies there told were all visions - and as there was no technology then, the technology at that time was absolutely IMPOSSIBLE to describe.
[Anyways, believe it or not - this is one freaky akward prediction.]