Views : 2,243,959
Genre: Science & Technology
Date of upload: Apr 29, 2023 ^^
Rating : 4.794 (2,878/52,921 LTDR)
RYD date created : 2024-05-21T16:53:55.148674Z
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Top Comments of this video!! :3
This reminds me of a joke I heard once.
Some aliens are passing Earth and do a quick scan. One says, " This species has satellite base weapons." So the other alien ask, " So they are an intelligent species?" The first alien replies with " No, they have them aimed at each other." It a little dark.
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I heard a really interesting solution to the fermi paradox from a biologist. She was citing a recent paper where we found that phosphorus is not as common in the galaxy as we initially thought. In fact we have somewhat of a lottery winner here on earth with drastically high amounts as compared to other star systems. Phosphorus is a key ingredient in the storing and transferal of biological energy all the way down to the level of binding DNA together. She said that the paper she had read stated that phosphorus is one of those heavier elements that are formed in supernovae instead of just from fusion and so it is possible that, despite the age of the universe, there has not been enough time necessary to create enough phosphorus for other life to arise. And just like how we're "lucky" to be on the planet that has essential liquid water, we could simply be "lucky" to be in the corner of the universe, in the corner of the galaxy, which has just high enough concentrations for life to have formed here.
If that were the case, then we are the precursors who will likely die out as a species long before enough phosphorus is created to support the types of galactic communities we dream of. It may very well be that eons from now, as the universe begins to evolve space faring civilizations, that our ruins are discovered scattered across the stars, and they translate our records of how alone we feel.
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Great video! I’m an astrobiologist, published and all. My opinion for what it’s worth is simply distance, time and the inverse square law. We have only had a bubble of radio waves going for 80 years, with the furthest chance for a reply arriving tomorrow being only 40 light years away, in a galaxy a 105,000 light years across. That’s only 0.03% of the galaxies diameter. The chances a technological civilisation is within that is minuscule.
Secondly is the inverse square law. The change any of our TV shows would “leak out”, and be detectable even by the largest telescope isn’t realistic. The signal would have attenuated well before a few light years. Of which there is only half a douzen stars at most in that sphere. Once again the chance a civilisation is in one of those few star systems out of hundreds of billions is low.
The answer to the paradox is space is really really big, and artificial radio sources are puny.
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It’s quite possible that spacefaring civilization is rare because it requires a balance of ambition, discretion, and foresight which is difficult to achieve. Civilizations that have a strong tendency to explore and colonize may also be more prone to internal conflict that disrupts their progress. On the other hand, civilizations that are peaceful, stable, and happy might not care to go exploring. Finally, the resources required would need planning and development over long periods of time, whereas short-horizon use of the same resources would be a constant temptation.
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Thank you for your engaging and informative content! I just found you and am really enjoying your videos. You briefly mentioned the great filter, and I was hoping you'd expand on that theory some more considering the topic. Would you consider making a video about the great filter and perhaps how it relates to this video topic?
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@brianarbenz1329
1 year ago
Imagine finding out that Fermi was only commenting on the slow service by the wait staff when he asked, “Where is everybody?”
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