Turing completeness is a myth!

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Zero

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Turing completeness is a myth!
« on: August 12, 2017, 08:45:38 am »
You probably know what Turing completeness is.

Quote from: Wikipedia
In computability theory, a system of data-manipulation rules (such as a computer's instruction set, a programming language, or a cellular automaton) is said to be Turing complete or computationally universal if it can be used to simulate any single-taped Turing machine.

But thinking about it, since the tape is supposed to be infinite, it's a purely theoretical object. Nothing on earth has infinite memory, hence nothing is Turing complete.

Even the human brain isn't Turing complete!
 :idiot2:

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korrelan

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Re: Turing completeness is a myth!
« Reply #1 on: August 12, 2017, 11:34:33 am »
What if the tape is a loop... it's still infinite but requires a finite amount of memory to compute lol.

 :)
It thunk... therefore it is!

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Zero

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Re: Turing completeness is a myth!
« Reply #2 on: August 12, 2017, 12:53:13 pm »
You cheater  ;D

The loop still has a finite number of cells...  ;)

 


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