I dont think we'll have AGI in 2 weeks like altman does, but its not fair to say its impossible.
LLMs also came out of nowhere, a series of discrete improvements that finally got over the hurdle and acheived an unprecedented functionality. Absolutely no one predicted its emergent capabilities back in 2016 when the transformer paper was proposed.
They didnt see scaling then, they might not see the next thing now, until its found.
So it wont be in the next 2 weeks, and it wont be from OpenAI, but it might be in 10 years from some random researcher at waterloo, or tiktok