By completely eliminating the need for a human workforce, therefore rendering a majority of humanity obsolete, therefore lots of social inequality, therefore lots of starvation, poverty and death.
When billionaires say "think about the trillions of people that will benefit from AI" and some notion of living in a post scarcity world, they are talking about _their_ descendants, not yours.
When billionaires say "think about the trillions of people that will benefit from AI" and some notion of living in a post scarcity world, they are talking about _their_ descendants, not yours.