To continue the natural process of earth so that the earth can age until death. Once the earth finally dies and all of the life on it, time will restart and we will live once again.
I answered this the other day...here it is again:
Beer.
or
The number 42 is, in The Hitchhiker's Guide to the Galaxy by Douglas Adams, "The Answer to the Ultimate Question of Life, the Universe, and Everything", calculated by an enormous supercomputer over a period of 7.5 million years. Unfortunately, no one knows what the question is.
or 101010 in Binary