I find it too mind boggling. But it isn't intelligence as you might find in a child, it's transactionally applying a corpus of knowledge and deciding what is best to say next, throwing in some randomness which makes it appear more human.

In many ways it simulates the human brain, shockingly well, but a dead human brain.

I'm really concerned about AGI now, when I see how much ChatGPT really is "knowing" more than I will ever do.

If a system with actual sentient feelings, needs, curiosity and eventually self-doubt was to go online, and never need to eat or sleep, it's only a matter of time until we become its pets.