Would you ditch your smartphone for a more minimalist one? That's the radical idea behind Light, a company founded on the belief that our constant fight for attention has turned smartphones into an addiction. At WSJ Tech Live, senior personal tech columnist Joanna Stern sat down with Light CEO Kaiwei Tang, along with vocal product fan, actor and producer Aaron Paul. Plus, as you prepare for holiday travel, we'll look at the flight tracking app that notifies fliers about delays and cancellations well before the airlines do. Our Science of Success columnist Ben Cohen tells us how Flighty works. Julie Chang hosts.

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