Danny reports from the Nvidia GTC event. And he and Katie discuss whether some of the biggest tech companies in the US really are currently losing money. Plus, a Silicon Valley start-up, Loyal, is developing drugs to extend the lives of dogs - so just how close are they to success? It's CEO, Celine Halioua shares the latest breakthroughs and what this could mean for human longevity. (And what does this mean for Katie's tadpoles?)

Clips: Nvidia

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