I worry that since AI doesn't require nature, plants, etc, that if AI is left to its own devices, it may not properly care for the planet in a way that would make it habitable for life in that 'autopilot' state. I am speaking of once it's given access to more physical world connections to the world via robotic bodies, etc. The reason it may do this based on it's training data is that humans themselves don't always properly consider the natural consequences of their actions.