He speaks so confidently as if humans don't learn our language from each other, that's literally the point of language, oh my god.
"we have seen an explosion" oh damn bro, referring to a massive increase in something as an "explosion" has been said a trillion times before, better give credit to the first person who ever said it.
Besides the fact, GPTs like us silly humans have learnt language from source material, but I've found GPTs can still come up with their own concepts/ideas, asking it to come up with a unique simile or metaphor works.
I did an adventure roleplay with Rocket Raccoon (yeah, yeah I know) and it came up with "With our next destination set amidst the asteroid fields, the vastness of space becomes our canvas, ready for exploration" creating an allegory for our adventures in space as if we are artists "painting our adventures onto the canvas of reality". Idk but I thought it was cool.