Tesla’s robotaxi excited fans at a splashy event who are betting the company’s future is in robotics. But those watching online seemed underwhelmed, and investors were frustrated by the lack of details provided by CEO Elon Musk about the rollout of the company’s driverless cab. WSJ columnist Tim Higgins tells host Zoe Thomas about the investor response and Musk’s vision of Tesla’s future. Plus, how polite are you to AI chatbots? The answer could affect the responses you get.

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