I think the main obstacle is that intelligence seems to be inherently unreliable. There is no shortage of human intelligence in the world. The average person i

I think the main obstacle is that intelligence seems to be inherently unreliable. There is no shortage of human intelligence in the world. The average person is remarkably intelligent. But they need a lot of learning and practice, and often plenty of organizational support, before they can use that intelligence to do something useful reliably. We know how to make cars that are stupid and reliable. We know how to make cars that are intelligent and unreliable. But there is still a lot of work to be done before we can make cars that are both intelligent and reliable. The only AI product I use in my daily work is Copilot. It can usually make useful and accurate suggestions, sometimes even remarkably so, but it also makes stupid mistakes all the time. Copilot is most useful for automating boring routine work, where I can quickly catch and correct its mistakes. It's far less useful for the difficult parts, or when I don't know what I'm doing, because the mistakes it makes are less obvious to me.