It's simple really. Look at self driving cars. It took a long time to develop them and they are not exactly replacing people. ChatGPT requires millions to train and run. People are now focusing on Generative AI. It will take them years to get out of this phase because of the sheer complexity and cost.

I know people who were trained as mechanical engineers, but they work in unrelated sectors. My friend, Fred, said that doing bespoke AI engineering in specific companies is not going to work due to the lack of experts and machines. But that is what it will take to make an impact. We don't have AGI yet, so you need specialized data and custom models for each company and job to do proper downsizing. Driving is one of the few exceptions and as I said it has not been successful yet. I don't have a PhD in economics, but I would not worry too much if I were you.