Having a number that relates words to other words is not understanding words. Stop believing the hype for fuck's sake. What they 'know' is NOT knowledge. They do not know anything. Period.
There is a reason they start to fail when trained on other slop; because they don't know what any of it means!
Their 'knowledge' comes from the basic weights of what word is most likely to follow. Period. The importance of that weight comes from humans. It is not intrinsic knowledge even after training. It is pure association, and not association like you or I do word association.
