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The Former CEO of Uber Kind of Sounds Like He's Losing It When He's Talking About AI

It sounds like the co-founder and former CEO of Uber has had a big gulp of the AI Kool-aid — and then some. On a recent episode of the All-In podcast, Travis Kalanick, who resigned from the ride-hailing company in disgrace in 2017, spoke rapturously about his experience using chatbots like ChatGPT and Grok. That's when he revealed his sincere conviction that he, a mere college dropout, was on the verge of achieving a breakthrough in physics just by probing the AI models. "I'll go down this thr

Time Is Three-Dimensional and Space Is Just a Side Effect, Scientist Says

A fringe new theory suggests that time is the fundamental structure of the physical universe, and space is merely a byproduct. According to Gunther Kletetschka, a geologist — not a physicist, you'll note, but more on that later — from the University of Alaska Fairbanks, time is three-dimensional and the dimensions of space are an emergent property of it, a press release from the university explains. "These three time dimensions are the primary fabric of everything, like the canvas of a paintin

Research suggests Big Bang may have taken place inside a black hole

The Big Bang is often described as the explosive birth of the universe – a singular moment when space, time and matter sprang into existence. But what if this was not the beginning at all? What if our universe emerged from something else – something more familiar and radical at the same time? In a new paper, published in Physical Review D, my colleagues and I propose a striking alternative. Our calculations suggest the Big Bang was not the start of everything, but rather the outcome of a gravit