This involves a faith in automation having near-magical powers, with no downsides whatsoever. Automation is expensive, limited to specific tasks that can be broken down into an unchanging list of steps, requires constant maintenance and updating, and is very vulnerable in ways humans are not. We already are very vulnerable as a computerized society to events like typhoons-a society with less people and more reliance on automation could suffer critical effects, since it often increases fragility as a trade off for efficiency.