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Accidentally Turing-Complete
"Some things were not supposed to be Turing-complete. This is a collection of such accidents."
computing  processing  turing  theory  reference 
4 days ago by sometimesfood
10 SQL Tricks That You Didn’t Think Were Possible – Java, SQL and jOOQ.
Listicles like these do work - not only do they attract attention, if the content is also valuable (and in this case it is, trust me), the article format can be extremely entertaining. This article will bring you 10 SQL tricks that many of you might not have thought were possible. The article is a…
sql  advanced  example  turing  completness 
14 days ago by gilberto5757
Mechanical Turing Machine in Wood.pdf - OneDrive
by Richard J. Ridel,

"(...) So there you have it. The machine is initialized, the Data Tape is Read and the data entered into the back of the Configuration Mechanism. The Configuration Table drops to the proper row and the Hammers read the Program Pins. They in turn set the wires that control the Writing of the Data Bits on the tape and then the movement of the Data Tape forward or reverse. They also set the State Slider for the State of the next cycle. Then various resets get the machine ready to do it all over again. That’s it, QED.

I’m sure you have read about the “Halting Problem,” Entscheidungsproblem. (Go ahead. Check the spelling on that.) Basically, Mr. Turing also theorized a Universal Machine that would take the data tape AND program pins as separate inputs to another machine. That machine would then be considered Universal as it would not need to be programmed. (Is that another challenge?) He did that in order to mathematically try to solve the Halting Problem. Which is; can a machine determine if a computation is complete or infinitely looping? And the result is a resounding, NO. It can’t. Therefore, the problem.

My machine has a similar problem. According to the 1936 specifications of a Turing Machine the point where a computation is completed is not specified. It is mostly guesswork and not mechanical. In other words, you see that the machine processed the input and is done.

Or is it."
turing  maching  wood  computer  science 
6 weeks ago by eric.brechemier
Lynn Margulis | West Hunter
Margulis went on to theorize that symbiotic relationships between organisms are the dominant driving force of evolution. There certainly are important examples of this: as far as I know, every complex organism that digests cellulose manages it thru a symbiosis with various prokaryotes. Many organisms with a restricted diet have symbiotic bacteria that provide essential nutrients – aphids, for example. Tall fescue, a popular turf grass on golf courses, carries an endosymbiotic fungus. And so on, and on on.

She went on to oppose neodarwinism, particularly rejecting inter-organismal competition (and population genetics itself). From Wiki: [ She also believed that proponents of the standard theory “wallow in their zoological, capitalistic, competitive, cost-benefit interpretation of Darwin – having mistaken him… Neo-Darwinism, which insists on [the slow accrual of mutations by gene-level natural selection], is in a complete funk.”[8] ‘


You might think that Lynn Margulis is an example of someone that could think outside the box because she’d never even been able to find it in the first place – but that’s more true of autistic types [like Dirac or Turing], which I doubt she was in any way. I’d say that some traditional prejudices [dislike of capitalism and individual competition], combined with the sort of general looniness that leaves one open to unconventional ideas, drove her in a direction that bore fruit, more or less by coincidence. A successful creative scientist does not have to be right about everything, or indeed about much of anything: they need to contribute at least one new, true, and interesting thing.

“A successful creative scientist does not have to be right about everything, or indeed about much of anything: they need to contribute at least one new, true, and interesting thing.” Yes – it’s like old bands. As long as they have just one song in heavy rotation on the classic rock stations, they can tour endlessly – it doesn’t matter that they have only one or even no original members performing. A scientific example of this phenomena is Kary Mullins. He’ll always have PCR, even if a glowing raccoon did greet him with the words, “Good evening, Doctor.”

Nobel Savage: https://www.lrb.co.uk/v21/n13/steven-shapin/nobel-savage
Dancing Naked in the Mind Field by Kary Mullis

jet fuel can't melt steel beams: https://westhunt.wordpress.com/2017/11/25/lynn-margulis/#comment-98201
You have to understand a subject extremely well to make arguments why something couldn’t have happened. The easiest cases involve some purported explanation violating a conservation law of physics: that wasn’t the case here.

Do I think you’re a hotshot, deeply knowledgeable about structural engineering, properties of materials, using computer models, etc? A priori, pretty unlikely. What are the odds that you know as much simple mechanics as I do? a priori, still pretty unlikely. Most likely, you’re talking through your hat.

Next, the conspiracy itself is unlikely: quite a few people would be involved – unlikely that none of them would talk. It’s not that easy to find people that would go along with such a thing, believe it or not. The Communists were pretty good at conspiracy, but people defected, people talked: not just Whittaker Chambers, not just Igor Gouzenko.
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12 weeks ago by nhaliday

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