Large companies have, in the past, been hesitant to leap onto every tech innovation and trend. But WSJ’s Steven Rosenbush says the artificial intelligence boom is different. Plus, Waymo is valued at $45 billion dollars, a far cry from Tesla’s $1-trillion valuation. WSJ Heard on the Street columnist Dan Gallagher writes that the launch of Elon Musk’s robotaxis actually shows why Google’s self-driving car company is worth more.

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