Sam, there is nothing unnatural about the most basic element of Moshiach — the recognition by all nations of the greatness of Hashem, the truth of His Torah, and the people he chose.
As I pointed out in the past, the point of Shmuel, and the Rambam, is that the laws of nature will not be different. The Hatzlacha and Hashgacha Protis, at least on the level that it was during the time of the Nevi’im, is not disputed. Don’t forget that Moshiach is the greatest Navi, and a Navi is proven with Nissim. That doesn’t mean the laws of nature will be abolished.