Just as development is the unfolding of an algorithm that is already present in the zygote at the time of fertilization, so evolution is the unfolding of an algorithm that was already present at a time before evolution began.
In addition, just as a mature adult represents the culmination of this developmental algorithm, so the present state of life on earth represents the culmination of the evolutionary algorithm and no further evolution can be expected.
We know the immediate origin of the developmental algorithm, it was inherited from the previous generation. But the question of where this information originally came from remains unanswered. In evolution, one would be wise to suspect that this algorithm has a long history, and probably did not originate on the earth, but came to earth from elsewhere, fully front-loaded to unfold in a compatible environment into the biosphere we see today.