We live in a world where someone has to clean the sewers, unblock toilets, maintain electricity lines in snow storms, weld deep underwater, clean, wipe the butts of old people, and 10,000 other thankless, tiring, and dangerous jobs which no one in their right mind would ever do because they found it fun and interesting. Until we have very highly capable robots to do these jobs, we need some way to incentivise doing work which few others want to do, or are capable of doing. Right now we use money as the incentive. On top of that, there are things people do which bring a lot of value to others. They invent new things, for example, and sell them. Others buy them. We also want to incentivise that, even though it's not easy, and not everyone is capable of doing that.

I do think AI and robotics will usher in a much more abundant world in the future. It's unclear how we navigate that - economically, politically, socially.