Canada is getting its first mainstream prediction markets, with Wealthsimple clearing a key regulatory hurdle and raising fresh questions about oversight and insider trading. Plus, OpenAI shuts down Sora and its splashy Disney partnership, underscoring the steep costs and shaky demand for AI-generated video. In the big picture: Ontario expands its new-home tax rebate, YouTube and Meta are found guilty in a social media addiction trial, and Iran rejects a U.S. ceasefire proposal.