StTheo
Well-Known Member
It's kind of hard to explain simply.I'm a little confused. Could you explain this principle in more detail, please?
That's the idea behind the Fermi Paradox. Besides, Earth's first radio broadcasts were only from ~100 years ago. How many aliens could hear us?"If aliens exist on other planets, why haven't we met them yet?"
...not to mention the billions of other galaxies out there.