I don't feel like the AGI people are talking about isn't necessary, something like that would at minimum require as much compute as neurons and synapses that of a teen (minus the requirements to maintain a body).
I think what we have right now with some (very difficult to achieve, but possible in the forseeable future) tweaks we can already see 95% of what an "AGI" could do come true: put most of the population out of jobs, work together and improve itself (to a limited degree) and cause general chaos.
What's that got to do with this post though.