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From: dbush <dbush.mobile@gmail.com>
Newsgroups: comp.theory
Subject: Re: DDD specifies recursive emulation to HHH and halting to HHH1
Date: Sat, 29 Mar 2025 15:26:27 -0400
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On 3/29/2025 3:22 PM, olcott wrote:
> On 3/29/2025 2:06 PM, dbush wrote:
>> On 3/29/2025 3:03 PM, olcott wrote:
>>> On 3/29/2025 10:23 AM, dbush wrote:
>>>> On 3/29/2025 11:12 AM, olcott wrote:
>>>>> On 3/28/2025 11:00 PM, dbush wrote:
>>>>>> On 3/28/2025 11:45 PM, olcott wrote:
>>>>>>>
>>>>>>> It defines that it must compute the mapping from
>>>>>>> the direct execution of a Turing Machine
>>>>>>
>>>>>> Which does not require tracing an actual running TM, only mapping 
>>>>>> properties of the TM described. 
>>>>>
>>>>> The key fact that you continue to dishonestly ignore
>>>>> is the concrete counter-example that I provided that
>>>>> conclusively proves that the finite string of machine
>>>>> code input is not always a valid proxy for the behavior
>>>>> of the underlying virtual machine.
>>>>
>>>> In other words, you deny the concept of a UTM, which can take a 
>>>> description of any Turing machine and exactly reproduce the behavior 
>>>> of the direct execution.
>>>
>>> I deny that a pathological relationship between a UTM and
>>> its input can be correctly ignored.
>>>
>>
>> In such a case, the UTM will not halt, and neither will the input when 
>> executed directly.
> 
> It is not impossible to adapt a UTM such that it
> correctly simulates a finite number of steps of an
> input.
> 

1) then you no longer have a UTM, so statements about a UTM don't apply
2) changing the input is not allowed