alt Hacker NewsIt doesnt have to able to generate original things, its enough to be able to detect what makes it original and replicate the original thing with enough variations in different contexts to be able to be destructive and render the true original thing completely useless
what you described is not how originality works.
think about how in music, when an artist comes out with something original and awesome, and then everyone starts copying it and creating their own derivative works, like Jimi Hendrix or something.
Did Hendrix become useless? Did everyone end up thinking he sucks or something? No, he is even more revered, as the originator of a new type of sound that probably created multiple genres
The same thing applies here. Originality will be valued and even empowered as extrapolation and development off of it can increase in speed and quality in the case you mention