Only if the technology exists to do so. Given the above discussion about a nuke plant, think of all the complexity inside it: - monitors - alerts & triggers

Only if the technology exists to do so. Given the above discussion about a nuke plant, think of all the complexity inside it: - monitors - alerts & triggers - valves - compressors and other rotating equipment - fire safety - electrical systems All of those have to be checked, tested, maintained, and fixed on a periodic basis over their lifetimes. An incompetent person (or group) will eventually be the cause of something. Maybe 100 years in the future we'll have self-operating nuke plants, but doubtful in my lifetime because of the incredible scale of complexity.