Quote:
Originally Posted by Bobbyoutback
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I think that's a good article - it's well stated before by many writers.
There may well have been many civilisations out there
in the universe but they could have lived and died out
5 billion years ago or whenever - with no trace left behind from them.
We only exist in a brief moment in time where we have had radio
communications - 120 or so years - such a small moment compared to the
billions of years available in the universe for any other civilisation to contact us.
It was only 50 years after radio communications were discovered
that we had atomic bombs capable of wiping out our whole planet.
That doesn't bode well for any other civilisations lasting very long
as they would have discovered the same levels of destructive power.
So far the signs are not good as we have not found a way to get rid of nuclear weapons -
and then we even have biological weapons that could wipe us out too.
All advanced civilisations would face the same intractable problems
so I doubt they would last very long.
I don't think we can last very long unless some humans can get off this planet
and start civilisations on other planets - Mars being the first one.
cheers
Allan