Is the individual who contacted me, over-optimistic about his ability to get the divine realm to shift algorithms at his request?

He is not overreaching or over-optimistic in the way he has interpreted prior experiments he has carried out to see what can be done to shift algorithms of various systems to favor an outcome of benefit to him or others he would like to see. The only caveat we would make is that there can be a difference in the effectiveness among various platforms and systems where algorithms of an automatic nature due to pre-programming have been established for differing motives and agendas. Something that is lofty and intended to be of service to others and fair to all, we would see as having an element of human free will that is soul-based for the good of others, and accordingly, would be disinclined to tamper with something that is balanced and fair. So we cannot make a blanket statement in the affirmative here because there can be exceptions. He can ask on an individual basis about a particular target situation to get our feedback before attempting to introduce a manipulation of some kind, to determine whether it is in divine alignment and doable with our help or not. Another way to get validation and feedback is to put it to the test on a small scale to see how he does before raising the level of risk, if money is at stake, for example. This need not be surprising, given that much of human experience is complex and nuanced in various ways and many times has hidden complexity and built-in constraints on our ability to act on anyone's behalf.