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zakruti.com » Knowledge, science, education » TED-Ed
Could human civilization spread across the whole galaxy? - Roey Tzezana

Could human civilization spread across the whole galaxy? - Roey Tzezana

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Rating: 4.0; Vote: 1
Could human civilization eventually spread across the whole Milky Way galaxy? Could we move beyond our small, blue planet to establish colonies in the multitude of star systems out there? These questions are pretty daunting, but their (theoretical) answers were actually put forth decades ago. Roey Tzezana describes the conceptual von Neumann machine. Lesson by Roey Tzezana
Date: 2020-08-22

Comments and reviews: 5


I ran the numbers on this myself. Let's say that the ship moves at. 01% the speed of light. (That's rounding up from the current fastest ship ever built) Moving at that speed would mean that we're moving at 1/10, 000th the speed of light, so for every lightyear travelled, the ship would take 10, 000 years. Let's say that the average star is about 5 light years away from its closest neighbor, and there are about 100 billion stars in the Milky Way Galaxy. Let's also say that every time the machine arrives at a star, it makes another copy of itself, and both copies continue travelling. Therefore, every 50, 000 years, the number of machines doubles, and once there are 100 billion machines, the galaxy is effectively colonized. It would take 37 cycles to get to 100 billion, so it can be accomplished in under 2 million years.
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There is a sci-fi book trilogy called We are Legion, We are Bob told from the perspective of a Von Neuman probe as it goes about its mission. It's a very good read and I would recommend it to anyone who likes hard sci-fi.
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Psshh! What a load of tosh! Just choose the sturdiest microscopic life form on our planet and shoot out far and wide into space (preferably onto a comet. It will find a way to live spread and survive somewhere.
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I couldn't watch this any longer without giving the animators the props they deserve, the animations are beautiful, the narrator is killing it too.
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What if A. I. machines with perfect memory quickly enter a been there done that, already know that state of boredom and self exterminate?
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