Spudboy100@aol.com writes:
> I wonder what the effect, then would be of a FTL transmission that could only
> work over tens of millions, or several billion lightyears; but non functional
> any closer then that? Should we listen for messages eminating from the
> distant future?
You could still set up time paradoxes this way, by cooperating with
some of your penpals a few billion ly away and have them contact your
ancestors.
Time paradoxes are not necessarily the end of all time
communication. If Novikov's self consistency principle holds, quantum
mechanics will prevent paradoxes by making paradoxical events have
probability zero - they will simply not occur, regardless of how much
we try.
-- ----------------------------------------------------------------------- Anders Sandberg Towards Ascension! asa@nada.kth.se http://www.nada.kth.se/~asa/ GCS/M/S/O d++ -p+ c++++ !l u+ e++ m++ s+/+ n--- h+/* f+ g+ w++ t+ r+ !y
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