I don't really see an argument made by Ng as to why they're not dangerous. I hardly ever see arguments, we're completely drowned in biases.

I know that he often said that we're very far away from building a superintelligence and this is the relevant question. This is what is dangerous, something that is playing every game of life like AlphaZero is playing Go after learning it for a day or so, namely better that any human ever could. Better than thousands of years of human culture around it with passed on insights and experience.

It's so weird, I'm scared shitless but at the same time I really want to see it happen in my lifetime hoping naively that it will be a nice one.