I wonder if we should be concerned. The human race is constantly evolving and this may just be one of the evolutionary steps. After all, humans are the ones moving in this direction. The earth's cliimate is increasingly more threatening, with the temperature continuing to rise. Perhaps, our salvation on the planet may come about as a result of artifiacial intelligence. As a side note, should we really call it, "artificial"? If it becomes the dominant form? Just wondering. We may be worrying about something in the same manner our earlier ancesters worried about progress. As it will be a slow evolution, the human race will adapt to it as it occurs, don't you think? Just considering the past twenty years, have we not adapted to the digital advancements with little or no negative results?