Re: Indirect Reference Changes the Behavior of DDD() relative to DDD emulated by HHH

Op 02.sep.2024 om 15:42 schreef olcott:

On 9/1/2024 5:48 AM, Fred. Zwarts wrote:

Op 31.aug.2024 om 18:15 schreef olcott:

On 8/31/2024 10:47 AM, Fred. Zwarts wrote:

Op 31.aug.2024 om 17:22 schreef olcott:

On 8/31/2024 10:15 AM, Fred. Zwarts wrote:

Op 31.aug.2024 om 14:50 schreef olcott:

On 8/30/2024 8:31 AM, Mikko wrote:

On 2024-08-29 14:04:05 +0000, olcott said:
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On 8/29/2024 3:00 AM, Mikko wrote:

On 2024-08-28 11:46:58 +0000, olcott said:
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On 8/28/2024 2:33 AM, Mikko wrote:

On 2024-08-27 13:04:26 +0000, olcott said:
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On 8/27/2024 12:45 AM, joes wrote:

Am Mon, 26 Aug 2024 18:03:41 -0500 schrieb olcott:

On 8/26/2024 7:42 AM, Ben Bacarisse wrote:

Mike Terry <news.dead.person.stones@darjeeling.plus.com> writes:

On 23/08/2024 22:07, Ben Bacarisse wrote:

>

We don't really know what context Sipser was given.  I got in touch
at the time so I do know he had enough context to know that PO's
ideas were "wacky" and that had agreed to what he considered a "minor
remark". Since PO considers his words finely crafted and key to his
so-called work I think it's clear that Sipser did not take the "minor
remark" he agreed to to mean what PO takes it to mean! My own take
if that he (Sipser) read it as a general remark about how to
determine some cases, i.e. that D names an input that H can partially
simulate to determine it's halting or otherwise.  We all know or
could construct some such cases.

>
Exactly my reading.  It makes Sipser's agreement natural, because it
is both correct [with sensible interpretation of terms], and moreover
describes an obvious strategy that a partial decider might use that
can decide halting for some specific cases.  No need for Sipser to be
deceptive or misleading here, when the truth suffices. (In particular
no need to employ "tricksy" vacuous truth get out clauses just to get
PO off his back as some have suggested.)

>
Yes, and it fits with his thinking it a "trivial remark".

>

That aside, it's such an odd way to present an argument: "I managed to
trick X into saying 'yes' to something vague".  In any reasonable
collegiate exchange you'd go back and check: "So even when D is
constructed from H, H can return based on what /would/ happen if H did
not stop simulating so that H(D,D) == false is correct even though D(D)
halts?".  Just imagine what Sipser would say to that!

Is this an accurate phrasing, pete?

>
Deciders never compute the mapping of the computation
that they themselves are contained within.

>
Why not? A decider always either accepts or rejects its input.

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The computation that they themselves are contained within cannot
possibly be an input.

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What would prevent that if the input language permits computations?
>

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When a TM takes its own machine description as input
this is not always that same behavior as the direct
execution of the machine. It is not the same because
it is one level of indirect reference away.

>
Now you contradict what you said above. You said that deciders never
conpute the mapping of the computation they themselves are contained
within.

>
Although deciders cannot possibly see their own behavior
other people can see this behavior.
>

Now you are saying that they do in a way that might not be
as expected.
>

>
If is a verified fact that DDD has different behavior
before it is aborted in the same way that people are
hungry before they eat.

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No, the behaviour specified by the finite string does not change when a simulator decides to do the simulation only halfway. It is just an incorrect simulation.
>

>
than the behavior of DDD after it has been aborted,
people are not hungry after they eat.

>
If two people are hungry and one of them eats, the other one is still hungry and needs to eat. It is stupid to say that they are no longer hungry because they have eaten.
Similarly the simulating HHH is not longer hungry, but the simulated HHH still is hungry and has not yet eaten.
>

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The direct execution of DDD includes the behavior
of the emulated DDD after it has been aborted.

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And the simulator should also simulate until it sees the behaviour of after the simulated HHH has aborted its simulator.

>
THIS IS ONLY YOUR OWN FREAKING STUPIDITY.

No evidence for this ad hominem attack. So, my claim still stands.

>
People that are not as stupid can see that HHH cannot
wait for itself to abort its own simulation.
>

>
And people (except the stupid ones) can see that, because HHH cannot wait for itself,

 Because this would require it to wait forever,
thus HHH knows that to meet its own requirement
to halt it must abort its simulation.
 

this means that HHH failed to simulate itself correctly

 You are either very stupid or a damned liar about this.
As long as HHH emulates its input according to the semantics
of the x86 language HHH is correctly emulating this input
even if this correct emulation causes the computer to catch
on fire.
 AS I HAVE TOLD YOU FAR TOO MANY TIMES
CORRECT EMULATION IS ENTIRELY DETERMINED
BY THE SEMANTICS OF THE X86 LANGUAGE.

Yes, but I don't understand why HHH, programmed by Olcott himself violates the semantics of the x86 language, by skipping the last few instructions of the halting program?

 When DDD calls HHH(DDD) then HHH must emulate
itself emulating DDD. If this causes the emulated
HHH to never return

Which is not the case, because the HHH to be simulated is coded to see a 'special condition' after a few recursions, after which it will abort and halt, after which DDD will halt, too.
Olcott is again still dreaming of the non-halting HHH, even though he himself has added the abort code.
Somehow he things that this abort code does not change the program's behaviour.

THEN THIS EMULATION IS
STIPULATED TO BE CORRECT BY THE ONLY MEASURE
OF CORRECT EMULATION, the semantics of the x86
language.

But since the simulated halts, it violates the semantics of the x86 language to skip these last few instructions.

 

up to the end. HHH cannot possibly simulate itself correctly up to the end.

 HHH cannot possibly correctly simulate itself to the end because
the x86 code of DDD and HHH specify that HHH cannot simulate
itself to the end. If HHH did simulate itself to the end then
HHH WOULD BE WRONG.

HHH cannot possibly simulate itself correctly up to the end.
Yes, but aborting does not fix the problem. It is still wrong, because it now aborts an aborting and halting program, skipping the last few instructions.