On 5/19/20 4:55 PM, Jon Zingale wrote:
> Doing so could be one meaningful way to interpret /tracing a thought/.

Yes. While I don't fully grok the expansions from fibers to bundles/sheaf, what 
it evokes in my head seems coherent.

> With regards to the discussion about our holographic surface, I could use more
> clarification on the lossy/lossless property. I assume we agree that sorting 
> is
> not dual to shuffling. For instance, defining the type of a shuffling 
> algorithm
> does not require Ord <http://zvon.org/other/haskell/Outputprelude/Ord_c.html> 
> to be a class constraint, where it /is/ required for sorting.

I think whether shuffle is yet another ordering depends on what we mean by 
"random". But I don't want to devolve into metaphysical conversations about 
free will and whatnot. So, if we assume shuffle is ordered, just ordered 
mysteriously, then we can talk about loss sans metaphysics.

> If we are claiming that the information found on our holographic surface is
> complete, I would like to think we are claiming it to be lossless‡. At the end
> of the day, it may be the case that we will never know the ontological status 
> of
> information reversibility through a black hole. Am I wrong about this? If our
> holographic surface isn't reversible, is hashing perhaps a better analogy?

To do complete justice to the steelman of the EricC/Nick claim, I think we do 
have to assert no loss. And invertibility of the transform(s) is the right way 
to think. But I *also* think, if we tried hard enough, we could get EricC/Nick 
to admit to some loss with the caveat that what's lost in that lossy transform 
is *irrelevant* somehow (EricC's use of "invalid" and yammerings about 
Wittgenstein >8^D). And since my point isn't to inadvertently create a 
*strawman* of their claim by making the steelman too ... well, steely, I'd like 
to allow for a lossy transform as well as a lossless transform. And, by 
extension, I'd like to allow both invertible and uninvertible transforms.

That may well be important if the steelman turns out to be nothing *more* than 
metaphor. If all I'm doing is laying out a metaphor for privacy, then I'll lose 
interest pretty quick because what I'm *trying* to do is classify privacy. I 
want string comprehension to be in the same class as behaviorism. I don't want 
to draw super-flawed analogies between them.

But the distinction ([non]invertibility) might very well help evaluate the 
believability of the steelman.

> If in the limit of behavioral investigation we find no more semantic 
> ambiguity than
> the semantic ambiguities we experience when attempting to understand an others
> language, [...]

I don't think it is. I think there is a no-go lurking that is associated by 
EricS's recent mention of the student laughing because the insight was "at his 
elbow". And it's (somehow) associated with Necker cubes, paradigm shifts, and 
even a "loss of innocence" you see in people who've become cynical, the 
difference between work and play, "flow", etc. It's related (somehow) to the 
opportunity costs of using decoder X instead of decoder Y. As SteveS pointed 
out, one's participation in the landscape *changes* the landscape.

This is fundamental to the steelman we're building. It's not merely 
epiphenomenal. By decoding the surface of the ... [ahem] ... "patient", you are 
*manipulating* the patient. You can see this directly in your worry about 
[ab]using Frank as our privacy touchstone.

I wanted to set the stage for this in the formulation of 1st order privacy (by 
obscurity) by laying out the thing to decode side-by-side with the decoder, 
evoking a UTM where the tape contains both the computation and the description 
of the machine that can do the computation ... but I thought that would 
interfere with my main targets EricC and Nick. If they reject the steelman, 
then this becomes a tangent project of numbers, groups, and codes ... which is 
cool, but not what I intended [†].

[†] I'd love to sit in on a read of Gentry's paper, though it'd all be over my 
head.


-- 
☣ uǝlƃ

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