"DH" == Dale Hurliman <hurliman@no.spam.please.sunlink.net> writes:

 Even if there were a natural source of primes, it would take an
intelligence to build a device for transmiting the output of that
source.

DH> Think pulsars. A natural source, a rotating neutron star,
DH> transmits very precise timing signals.  Nature is sometimes
DH> subtle.

Yes and no.  While the first pulsars were considered as possible alien
beacons, it was recognized quickly that they were slowing down.  One
of the ways that we can time pulsars so accurately is because we can
take into account the slowing of their rotation.  Any pulsar can be
observed to be slowing down and recognized as natural.

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