Why haven't aliens visited us or left us a calling card? This blog figures out everything we can about aliens without meeting one. It discusses Great Filters as well as Asymptotic Technology. What are they? Check out the blog to find out...

Owner: srickson45

Listed in: Science

Language: English

Tags: starship, alien, ET, technology, planet

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Latest Blog Posts for Stan Erickson Alien Civilization Blog

  • Needs, Wants and Satisfaction in Alien Civilizations
    on Dec 5, 2016
    It is easy to imagine alien civilizations with different levels of satisfaction of the citizens’ needs and wants. For civilizations past asymptotic technology, there are some additional considerations. If we use the term needs to mean the biologi...
  • Combinatorical Templating
    on Sep 3, 2016
    Biological evolution seems a bit easier to understand than chemical evolution, which is what happens to create the first biological cell, defined as having some coded genetic information used to make new cells. The basic principle is the same, that...
  • There are no SuperAliens
    on Sep 2, 2016
    Mankind has conceived of superbeings for as long as there have been clans and conversation. Once humans learned to talk and then to try and figure out the reasons for whatever they saw, they imputed some happenings to the work of superbeings. The e...
  • Life Origination on Super-Earths
    on Aug 31, 2016
    Super-Earths, meaning planets with somewhat more mass than Earth but not enough to be a gas giant, have been found frequently in the exo-planet searches that Earth’s astronomers are doing. Planets as small as Earth are hard to see, but this may ch...
  • Interstellar Hybrids
    on Aug 30, 2016
    Suppose it just happened that there were two solar systems, within a hundred or a few hundred light years of one another, and on each of these there was the origination of life, and on each of them life evolved to photon-users, then to land creatures...
  • Sol-like Solar Systems
    on Aug 21, 2016
    Before we on Earth started discovering exo-planets, the idea was common that our solar system was typical, and other solar systems, once we discovered them, would look like ours. Specifically, all we knew about at that time were the eight planets an...
  • Counting Alien Civilizations
    on Aug 17, 2016
    If there are about 100 billion stars in the galaxy, with 10% or 10 billion in the disk, and 10% of those of the right spectral type, or 1 billion, and 1% of those have a rocky planet in the Liquid Water Zone, with the right gravity, composition, magn...
  • Existential Nihilism in Alien Civilizations
    on Aug 14, 2016
    Wouldn’t it be humorous if philosophy were the reason why aliens aren’t buzzing around our planet and waving to us? Philosophy affects almost nothing on Earth, in an explicit way. No one goes around thinking about ‘what would Kant think about...
  • Are Black Holes Good Neighbors?
    on Aug 12, 2016
    Let’s talk about normal-sized black holes, with mass a few times that of the sun. We don’t have any of these close by that we know about. So, their existence has to remain slightly tentative. They are fairly simple to imagine. Suppose you hav...
  • The End of the Milky Way
    on Aug 8, 2016
    An alien civilization that is motivated to stay in existence might be able to do so by migrating from solar system to solar system. With a small population and the mandatory high-percentage recycling, they could hope to get on the order of a million...
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