Plus: Anthropic's listing could determine the future of the AI investment boom. This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. After weeks of frenzied speculation, Anthropic has filed its IPO prospectus. The 335-page document (100 pages or so are focused on risks) lays out the company’s unique view of the technology it is building and how it believes it will change the world.