> On 29 Sep 2018, at 22:52, Brent Meeker <[email protected]> wrote:
> 
> 
> 
> On 9/29/2018 1:45 PM, [email protected] <mailto:[email protected]> 
> wrote:
>> 
>> 
>> On Saturday, September 29, 2018 at 8:07:12 PM UTC, Brent wrote:
>> 
>> 
>> On 9/29/2018 4:34 AM, [email protected] <javascript:> wrote:
>>> A bacteria is already a computer (at least),
>>> 
>>> 
>>> Really? Then you should be able to identify the entities that store binary 
>>> information. And where is the clock which pulses and advances the 
>>> instruction pointer? And where is the instruction pointer located? AG
>> 
>> Not all computers are von Neumann computers.
>> 
>> Brent
>> 
>> Maybe he means a parallel processor, but whatever he means should be spelled 
>> out explicitly. One can't just assert, as if it's obvious, that a bacteria 
>> is already a computer.
> 
> Of course it is obvious that a bacterium computes things...like swimming 
> toward nutrients and how to make another bacterium.

Sure. But that would not be enough to be a “creative set” (a universal number). 
Typically, self-reproduction is not Turing universal (Royer wrote a nice book 
on when a control structure is Turing universal, and very powerful recursion 
are shown to be not Turing universal, this leads to interesting subset of the 
partial computable functions, known as the sub creative hierarchies). They 
verify the SMN theorem, but not the enumeration (universality) theorem.

But a bacteria can emulate a full universal machine. The hard part is the read 
and write interface, which requires handling well some phages (virus). Might 
say that it is only bacteria + phage which are operationally Turing universal. 

Bruno


> 
> Brent
> 
>> One thing for sure; he doesn't know what the MUH is, and therefore cannot 
>> understand my simple falsification of the hypothesis. AG 
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