The number "9" can refer to various things, but here are some notable references:
- It is the title of a 2009 animated post-apocalyptic science fiction film directed by Shane Acker. The film features a rag doll labeled "9" who awakens after humanity's end due to a machine uprising. The story revolves around the rag doll and a group of similar creations navigating this hostile world.
- "9" is also associated with Sustainable Development Goal 9 (SDG 9) set by the United Nations, which focuses on building resilient infrastructure, promoting inclusive and sustainable industrialization, and fostering innovation globally.
- Additionally, "9" can refer to a tech product like the Google Pixel 9 phone, launched with AI features.
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