“They found that just seven historical mutations, ...”
hmmm...
http://www.varchive.org/itb/ecsab.htm
The destruction of the world in the days of the Exodus closed, in the conception of the Hebrews, the age of creation. It was to signify the end of the time when the Earth and men were to be shaped and reshaped. The traditional and very old Hebrew prayer at the beginning of the Sabbath opens with these words: “The sixth day. And the heavens and the earth were established. And the Lord finished in the seventh day the entire work that He did and rested from all the work that He did.”
The meaning of this passage is that in six world ages the heavens and the earth were finally established, and that now, in the seventh age, no further changes in the cosmic order should be expected. The Lord is actually implored to refrain from further reshaping the Earth.
The idea that God’s day is a millennium is often met in Talmudic literature; the apostle Peter also says: “One day is with the Lord as a thousand years.” (5) Thus the seven days of the week represent seven world ages; and the day of the Sabbath represents the seventh world age, which is our age. According to the rabbis of the Tractate Shabbat of the Babylonian Talmud, “Sabbath” is to be interpreted as sabbatu - cessation of the divine wrath.(6) This fits exactly our idea of the Sabbath as the age of rest when the heavens and the earth are established and are not to be disturbed again...
:’)