Wearable Fitness Devices Don’t Seem to Make You Fitter – The New York Times

I once received a lot of blowback for an Upshot article in which I showed (with evidence) that exercise is not the key to weight loss. Diet is. Many, many readers cannot wrap their head around the notion that adding physical activity, and therefore burning more calories, doesn’t necessarily translate into results on the scale.

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An AI Hedge Fund Created a New Currency to Make Wall Street Work Like Open Source | WIRED

WALL STREET IS a competition, a Darwinian battle for the almighty dollar. Gordon Gekko said that greed is good, that it captures “the essence of the evolutionary spirit.” A hedge fund hunts for an edge and then maniacally guards it, locking down its trading data and barring its traders from joining the company next door.

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Google’s AI Duet lets you make music with a virtual pianist – The Verge

Google’s latest artificial intelligence experiment is a music-playing piano bot that digests whatever keyboard melodies you give it and tries to respond in kind. The neat tool is called AI Duet, and it’s part of an ongoing push from Google’s Creative Lab division to help the public familiarize themselves with AI.

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