"Genius" that is a blind, deaf amnesiac? Do you even understand how neural network chatbots work?
I've outlined in exhausting detail why they could come up with answers better then the average bear if you give them the correct information. You think just because they can't independently observe their intelligence is useless. Every question asked on the internet is to people who can't directly observe your problem, and yet it's kinda fucking popular.
First of all, that won't solve the problem of small talk. No amount of datasetting can. You would need to actually have perception for that to be possible. That would indeed be solvable with the correct information... and GPT can't get that sort of information in real-time by its very nature. Second of all, retraining neural nets, particularly large ones, on new info is expensive and time-consuming so that won't solve discussing news or feedback about newly-made media. I won't be able to e.g talk to a chatbot about my SF setting or discuss that newly-released AAA game with it.
This is why I would never consider a GPT chatbot sapient, no matter how large its dataset is. I reserve the term "pseudosapient" for such hypothetical entities. The seams will always be there without a fundamentally different approach to AI.