Diogenes holds up a plucked chicken and proclaims "Behold, a man!"
The hypesters are defining AGI (and even General Intelligence) like Plato defined man, "A featherless biped". Either they know this, and they are hucksters, or their thinking is that shallow, and thus have nothing meaningful to say on the subject.
General Intelligence has drivers, like curiosity, hope, a sense of fairness and injustice, and hunger, pain, pleasure, fear. And those things probably drove the refinement of intelligence, and as such, a housecat is less like a simple machine than a earthworm is.
I think AGI is possible. Ultimately we're all machines, and I don't believe in a free will particle, but it is fairly obvious that an earthworm merely acts, while a cat acts interestingly, pulling in qualia unavailable to the worm. A worm is either active, or its dead, while my cat is clever enough to cut corners, to seek efficiency or pleasure, to be lazy.
And humans are even better at it. Therein lies the rub: people working on AI don't seem to aiming for real intelligence, they want their convenient action machine, more like a worm than a cat. And the hypesters (and doomsters) hand wave and say "suddenly, it will become self aware and magically motivated." Suuuure. We're far more likely to be thoughtlessly killed off before a machine muses, "I think, therefore I am".
Just because it "am", does not mean it thinks.
To be intelligent is to be able to consider "why?" and "how?", to be able to fool one's self, even in the face of cold reality, to yell "no fair!", "I don't wanna", and to wonder how one might take short cuts or avoid tasks at all.
Which is how and why we're chasing AI, but nobody is working out how to make it cry. The cart will be build, and the horse will suddenly appear, all haltered up? The rain will follow the plough?
No. That's magical thinking.
It took about a billion years of massive parallel organic computation for evolution to synthesize general intelligence, and we're to believe that some malfunctioning quine machine is going to break out, 75 years from the starting gate?
Not by accident, and certainly not be design.