On 2-4-2010 0:21, Nicolas Alvarez wrote:
> andrel wrote:
>>> Is that realistic to expect?
>> If you really want to broadcast a message anything is realistic.
>
> And what if they aim the message directly at us? I assume they can use less
> power if they are pointing exactly at the Earth.
>
Then they know we are here which implies that they noticed our radio or
television broadcasts. So, the answer to your question will not be
relevant within the next 3 centuries.
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