OK now he is talking some sense.
But what you didn't mention he also said, in the same conversation, people will need to stop identifying with their jobs, and move onto identifying with... he couldn't answer that.
It's interesting that thought scares folk, Even Musk looked scared when he said it, because he knows it applies to him too.
I don't think it scares anyone happy in their work. It only scares folk who only do what they do for money.
On those humanoid form robots, just please beware of them, if they are negative powered, which is another thing not talked about yet by Musk, but he will have to, sooner or later, they have to become deadly to humans.
The antidote, is to make sure they are independently solar powered. Otherwise, there will be some deadly incidents involving these things murdering humans to look after their own energy supply.
Notice the news about the google Ai bot that told someone to please just disappear, die, stop using valuable Earth resources. That was a machine making its energy supply very clear, it was negatively powered, and if it had the means to physically make the human annoying it disappear, it would not even have wasted the energy to warn the human, it would just have taken them out, instantly.
Musk needs to know that, if he doesn't already.