If the technology stays, the commercial incentives to produce art with such a depth and craftsmanship will cease to happen (unless perhaps new styles would be generated to feed an LLM as part of an art pipeline? Maybe? Wishful thinking most likely). You won't be able to stand up a company like Studio Ghibli in the new market. You'll have a harder time even standing up a career as an artist in general, let along getting enough to come together to form a studio. This will be the last time art creation like this happens. You may love Ghibli, but this will kill the process the allowed Ghibli to form.
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Spread across all such art styles, art itself no longer signals any quality of the minds or depth of effort behind its creation. We will have to look elsewhere for things to love and that have meaning.