[This is a repost, I didn't see it come out before.  I have a sinking
feeling that the first URL contains the magic letters s - c - r - i -
b - e and that is triggering some kind of filter!  If so that is
rather inconvenient given that this is one of the main list archive
sites.  Hopefully this header will move it down far enough that the
filter will ignore it.
Extra line.
Extra line2.
Extra line3.
Extra line4.
That should be enough!]

Here is a start at a glossary:

UD - The Universal Dovetailer, a hypothetical system for
running all possible computer programs.  See UDA.

UDA - The Universal Dovetailer Argument of Bruno Marchal, which
concludes that we must derive the laws of physics from computer science.
See http://www.escribe.com/science/theory/m3044.html.

Level 1, 2, 3, 4 multiverses - These are based on Max Tegmark's
hierarchy, described at http://www.hep.upenn.edu/~max/multiverse1.html.
Briefly, the level 1 multiverse consists of regions of space within
our universe that are beyond our observation horizon.  Level 2 is
the multiple bubbles of space predicted by inflation theory.  Level 3
is the Many-Worlds Interpretation of Quantum Mechanics (MWI).  Level 4
is the hypothesis that all mathematical structures exist and that some
of them can be though of as universes.

MWI - The Many-Worlds Interpretation of Quantum Mechanics, which holds
that at every quantum event the universe splits into parallel worlds.
See http://www.hep.upenn.edu/~max/everett.html for Tegmark's version.
Also see the level 3 multiverse reference for more links.


For the following, I don't have links, and my definitions may not be
quite right, so I invite corrections and links to definitions.


SSA - The Self-Sampling Assumption, which says that you should consider
yourself as a randomly sampled observer from among all observers in the
multiverse.

SSSA - The Strong Self-Sampling Assumption, which says that you should
consider this particular observer-moment you are experiencing as being
randomly sampled from among all observer-moments in the universe.

ASSA - The Absolute Self-Sampling Assumption, which says that you should
consider your next observer-moment to be randomly sampled from among all
observer-moments in the universe.

RSSA - The Relative Self-Sampling Assumption, which says that you should
consider your next observer-moment to be randomly sampled from among all
observer-moments which come immediately after your current observer-moment
and belong to the same observer.

Hal

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