Key features include 4-day battery life, an enhanced heart rate monitor and automatic tracking. CNBC’s Harriet Taylor checks it out.
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First Look At Fitbit’s Long-Awaited $300 Ionic Smartwatch | CNBC

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AI doomerism hit a fever pitch after former OpenAI and Anthropic researchers warned that AI could kill us, and Anthropic CEO Dario Amodei, OpenAI’s Sam Altman and SpaceX CEO Elon Musk joined the cause. As runaway AI fears reached a crescendo, policymakers renewed calls for a magic stop button for AI or a kill switch, which would require model makers to build a capability to shut down access when an agents go awry. CNBC speaks to experts to find out what it would take to build an AI kill switch.

Chapters:
0:00 Introduction
1:55 Car we create an AI kill switch?
2:51 Hardware-based soltuion
3:14 Kill switch regulation
5:31 The EU AI Act
7:21 Self regulation
8:44 Are we too late?

Reporter: Samantha Subin
Senior Director of Video: Jeniece Pettitt
Edited by: Erin Black, Andrew Evers
Additional Footage: Getty Images

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Why It’s So Hard To Build An AI Kill Switch

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More than 40% of ground business travel receipts were for Uber services in Q4, according to Certify.
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Uber Shakes Up Business Travel | Tech Bet | CNBC

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In South Korea, where a mountainous landscape makes building huge projects an incredible undertaking, SK Hynix — the world’s leading maker of high-bandwidth computer memory — is investing $720 billion on what it says will be the largest network of memory factories in the world.

Get an inside look at the company’s AI-fueled buildout in related video.

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Unprecedented hack attempt prompts Apple to issue security update.
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Security Flaws Prompt Apple To Issue iOS Update | Tech Bet | CNBC

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