spotted in London: the eternal modern, the aesthetic end of history.
(Cézanne died 116 years ago, but his paintings are still considered modern. This is more to do with our stagnation than his prescience.)
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Term from this great blogpost about the International Style of building
You can throw this back and say that "modern" simply doesn't mean recent anymore; that it instead has post-impressionism and century-old modernism as a referent.
But that fails immediately since: why did that change?