[ExI] Silence in the sky-but why?

[Eugen Leitl]

On Mon, Sep 02, 2013 at 06:35:19PM +0200, Giulio Prisco wrote:

> An alien artifact the size of a dust speck, crewed by 42,000 alien

You need at least cm^3 for a human equivalent. Dust motes are
possible, but quite stupid.

> uploads implemented in nano-circuitry, landed on my nose five minutes

You can cloak macroscale artifacts quite easily, especially if
you've infiltrated CNS of people, causing selective agnosia.

> ago. It is now writing a virus to replace junk DNA with a message.
> 
> A few seconds ago, a wormhole opened in my freezer between the meat

Even if wormholes were easy nevermind feasible, and smart
cultures were common as dirt, statistically, not all of them
would vanish without trace.

Even a single hillbilly would be detectable halfway across the
universe. Yet it isn't.

> and the cottage cheese. It is now shooting photons at the eggs, and
> you wouldn't believe the message encoded in the polarization. It is
> really wow.
> 
> No? Perhaps yes. Let's keep looking, and widen the search.

Anything in numbers will have a giant metabolism. Aliens don't run on unicorn farts.