Is Spacetime Emergent?

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In general relativity, when spacetime can be curved, at every point in spacetime there is something called what it would mean to move slower than the speed of light. To travel in a space-like direction from that point in Spacetime would mean to moving faster than the speedof light. At every point there might be a different notion of what it means to move forward in time. Paul Cronin asks, if spacetime is emergent, what could it be emergent from? Would love your gut feeling on this?" I think by the structure of the question is pretty clear, it presumes there is something from which the spacetime is Emergent," he says.

Welcome to the February 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patreons, whittle them down to a more manageable number — based primarily on whether I have anything interesting to say about them, not whether the questions themselves are good — and sometimes group them together if they are about a similar topic. Enjoy!

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The big news this month is the successful awarding of the first ever Mindscape Big Picture Scholarship. Congratulations to Lyat Melese and Rehman Hassan! We continue to collection donations for next year’s scholarship contest.

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