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Originally posted by Badge01
Consider this post, if you will, as the Devil's Advocate position.
There is probably no better system of quarantine possible than:
1. Immense distances;
2. Hard Radiation;
3. Hard Vacuum;
4. Intense cold;
5. Synchronicity.
Originally posted by Badge01
Hi all. Interesting topic.
First, I'd invite everyone to check the title of the topic. It's not:
A. We are not alone in the Solar System;
B. We are not alone in the Universe.
It's I believe we are not alone in the Milky Way Galaxy.
I 'believe' something different, but on topic.
I believe we are isolated in the Galaxy, and we will never meet any other sentient beings; ever.
Consider this post, if you will, as the Devil's Advocate position.
There is probably no better system of quarantine possible than:
1. Immense distances;
2. Hard Radiation;
3. Hard Vacuum;
4. Intense cold;
5. Synchronicity.
Number 5 bears some explanation. Sentient beings are mortal. Even those with exceptional lifetimes, given a time scale of billions of years, are unlikely to be at a technological peak in the same time frame as any other.
In addition, though nature may select for microorganisms, it may not select for intelligence. Majungatholus, a Jurassic carnivorous (meat-eating) dinosaur dominated the landscape in Madagascar for 93 million years. It had a brain the size of your fist. In all that time, it never evolved to acquire intelligence.
Further, technology may be a rare situation. In order to have technology you have to have metals and you have to be able to mine them. That means they have to be near the surface. It may be that the collision that occurred which formed the Moon brought enough metals to the surface of the planet for us to be able to mine them.
So, I believe that not only are we isolated, we, as sentient, technology wielding medium-sized bipeds on a relatively low gravity world with lots of water, powered by a geo-thermal engine, renewed by plate tectonics, weather and climate stabilized by the presence of a large Moon, are extremely rare.
By my estimates, I believe we are the only sentient beings in our Milky Way Galaxy.
Any other sentient beings in any other part of the Universe are not On Topic, and thus do not concern us.
Originally posted by Badge01
So, I believe that not only are we isolated, we, as sentient, technology wielding medium-sized bipeds on a relatively low gravity world with lots of water, powered by a geo-thermal engine, renewed by plate tectonics, weather and climate stabilized by the presence of a large Moon, are extremely rare.