[extropy-chat] sci-fi question

[scerir]

From: "spike"

> They are far too pervasive and uniform
> to be explained this way.

Yes. The problem, essentially, would be
how to distinguish e.m. messages (from
CBR).

In general a message transmitted over a
limited channel (limited bandwith) is not
easily distinguishable from random noise
to a receiver who is not familiar with
the language, or the coding, of that message.

The question, here, is whether an "efficient" transmission
of e.m. messages (they can encode information using
direction, or timing, or polarization, or energy, or ...)
would be distinguishable from black-body radiation,
or from 3°K. CBR.

"Efficient" here means, essentially, "reasonable"
energy budget per unit of time.

(A similar speculation could be made about
efficient transmission of messages using particles
other than photons. In this case the parameter
would be that of Hawking black-hole radiation,
maybe!).

s.