The Fermi Paradox — Where Are All The Aliens? (1/2)

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The universe is unbelievably big – trillions of stars and even more planets. Soo… there just has to be life out there, right? But where is it? Why don’t we see any aliens? Where are they? And more importantly, what does this tell us about our own fate in this gigantic and scary universe?

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The Fermi Paradox — Where Are All The Aliens?

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22 COMMENTS

  1. With our current technology, we can only observe and detect a tiny faction of our own galaxy. Basically, on,y what’s in our line of sight. Maybe our technology isn’t sufficiently advanced enough to even detect a more advanced alien civilization. Who says aliens who only use rather primitive radio waves or known radiation sources? And what if we haven’t looked in the right direction. Our solar system is located in one of the spiral arms of the Milky Way. We don’t even know everything about our local galactic space.
    An advanced alien civilization could have been exploring galactic space for thousands of year, and never come across our small, insignificant star system.
    They are probably asking the same questions, they have explored hundreds of Star systems and have found any other advanced life forms. Even if they detected our radio and electronic signs, without some type of cosmic Rosetta Stone, how could they determine the meaning?
    Hell, we may have been receiving alien transmissions for thousands of year, but we never delivered the technology to decipher them.

  2. Why are you fascinated with aliens? You are not as intelligent as them and they won't come to dilldally with you. They come to help in your extinction

  3. First video: "our Milky Way galaxy has 400 billion stars, roughly 10,000 for every grain of sand on earth"
    Second video: "there are probably 10,000 stars for every grain of sand in the observable universe"
    Which one is it @Kurzgesagt?!
    If you need a fact-checker, Call me.

  4. If the amount of habitable planets in the universe were to have any meaning, we would have to know just how likely of a chance that life is to arise in the first place. From the common understanding of random chemistry forming its components, the number of planets in the universe has no bearing as, even though it is a large number, it's far too small to appreciably affect the probability of life arising by chance. Check out "probability of a single protein" to get an idea of how incredibly unlikely anything is to form undirected by chance and chemistry alone.

  5. 10000 stars for every single grain of sand on Earth? I think that all the grains of sand on the Sahara desert only, pass that number quite easily. Maybe you're mistaken, it could be 10000 for every single grain of sand on all the beaches of planet Earth. Wrong facts IMO

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