Inside the world of deepfakes

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Earlier this week, a viral video showed actor Rashmika Mandanna entering an elevator—except it wasn't her at all. The 'deepfake' had Mandanna's face superimposed on a video that originally featured British-Indian content creator Zara Patel. Siddhartha Saxena, cofounder of AI-based startup Foyer, takes us through how this scary, absurd, futuristic technology works—and why it isn't all bad