Re: Tegmark's Mathematical Universe

Gary Oberbrunner <[email protected]> Thu, 20 Mar 2014 16:27:51 -0400
Newsgroups	gmane.science.physics.fabric-of-reality
Message-ID	<CAFChFyi1hsrFZyr301bcUXwDFZDzo-z2kxYN1YOtvPrqHtCMpg@mail.gmail.com>
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On Thu, Mar 20, 2014 at 10:36 AM, Lee Corbin <[email protected]> wrote:

> First, though, extremely annoying is his terminological predilection of
> calling our visible universe
>
I won't get into your moral quagmire, I'll leave that to others.  But I do
think Tegmark does a great disservice muddying the terminological waters by
calling his level two universes a "multiverse" when that term has been in
some use for a long time to mean something different -- namely MWI.  His
level 2 universes don't even occupy the same spacetime; they (by
definition) can have no contact with one another and are thus entirely
speculative.

-- 
Gary

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      <p><div dir=3D"ltr"><div class=3D"gmail_extra"><br><div class=3D"gmai=
l_quote">On Thu, Mar 20, 2014 at 10:36 AM, Lee Corbin <span dir=3D"ltr">&lt=
;<a href=3D"mailto:[email protected]" target=3D"_blank">leecorbin337@g=
mail.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"border-left:1px #ccc solid;"><p>=
First, though, extremely annoying is his terminological predilection of <br=
>
calling our visible universe</p></blockquote></div>I won&#39;t get into you=
r moral quagmire, I&#39;ll leave that to others. =A0But I do think Tegmark =
does a great disservice muddying the terminological waters by calling his l=
evel two universes a &quot;multiverse&quot; when that term has been in some=
 use for a long time to mean something different -- namely MWI. =A0His leve=
l 2 universes don&#39;t even occupy the same spacetime; they (by definition=
) can have no contact with one another and are thus entirely speculative.<b=
r>
<div><br></div>-- <br>Gary
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