Reply to post: Re: Space is big, signals are weak

ALIENS are surely AMONG US: Average star has TWO potentially Earth-like worlds

Nigel 11

Re: Space is big, signals are weak

Furthermore, they would probably switch to digital equally quickly and then start encrypting everything routinely, for commercial reasons if not for anything else. And a well encrypted transmission looks pretty much like random noise.

That's any well-coded signal, ie coded to make efficient use of available bandwidth. The main difference between encryption and "mere" efficient coding, is whether you publish the decoding algorithm and key(s), or not!

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