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From: rjg@meccts.UUCP (Robert J. Granvin)
Newsgroups: net.tv.drwho
Subject: Re: TARDIS Vunlerability
Message-ID: <303@meccts.UUCP>
Date: Sun, 9-Feb-86 03:45:05 EST
Article-I.D.: meccts.303
Posted: Sun Feb  9 03:45:05 1986
Date-Received: Tue, 11-Feb-86 07:09:17 EST
References: <9310@ritcv.UUCP>
Reply-To: rjg@meccts.UUCP (Robert J. Granvin)
Organization: MECC Technical Services, St.Paul, MN
Lines: 14
Summary: 

Contradictions almost appear to be a necessary part of Dr. Who.  For
example, someday count how many times the Loch Ness monster and the
death of the Dinosaurs has been explained.

As far as the TARDIS "destruction" on Frontios, I believe this was
described as a TARDIS defense mechanism.  The TARDIS scattered itself
to prevent a destruction (forgive me if I am wrong on this episode).
Actually, it has been mentioned many times that the TARDIS isn't 
really indestructible, it just has some very powerful defense
mechanisms that made a total destruction "practically impossible".
(The first view of this is in the Hartnell episode "The Edge of
Destruction".  It is quite obvious that the TARDIS may be destroyed,
but that it simply wouldn't let it happen, and would do everything
possible to prevent it.)