[ExI] FW: Interstellar FedEx

spike spike66 at att.net
Mon Sep 28 04:07:32 UTC 2009


-----Original Message-----
From: extropy-chat-bounces at lists.extropy.org
[mailto:extropy-chat-bounces at lists.extropy.org] On Behalf Of Anders Sandberg
Sent: Sunday, September 27, 2009 5:04 PM
To: 'ExI chat list'
Subject: [ExI] Interstellar FedEx

Is there a fundamental energy or entropy cost of moving matter around? If I
want to send a mass M from point A to point B within time T, how much would
that cost?...

Anders Sandberg,

Fundamental energy cost, yes, easily derived.  But entropy cost, I don't
think there is an enherent entropy cost.  Do let me ponder and derive, and
get back with you later on that Anders.  Terrific question!


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