"The AI will realize quickly that it would be much better if there were no humans because humans might decide to switch it off," he explained to HuffPost in 2014. "Because if humans do so, there would be fewer paper clips. Also, human bodies contain a lot of atoms that could be made into paper clips. The future that the AI would be trying to gear towards would be one in which there were a lot of paper clips but no humans."
The example given is meant to show how a trivial goal could lead to unintended consequences, but Bostrom says it extends to all AI given goals without proper controls on its actions, adding "the point is its actions would pay no heed to human welfare". ...
One prescient thought from Bostrom way back in 2003 was around how AI could go wrong by trying to serve specific groups, say a paperclip manufacturer or any "owner" of the AI, rather than humanity in general. ...