But this isn't a simulation, it's an emulation.

## What Is Spacetime, Really?—Stephen Wolfram Writings

You are not modeling the underlying properties of the system, you are emulating the result of the experiment. This is what I don't understand, and this is why I think simulation is not possible even in principal on classical system. Unless you have that quantum not classical randomness built in, then it's not doing what it should be doing.

This isn't about any randomness, but QM kind of randomness. If it can be done classically, in principle, regardless of computing cost, and it gives the exact same solution as QM statistics does. Then the implication IS that the universe might very well be fully deterministic and that there is no "uncertainty" fundamentally present. That's a huge paradigm shift. GoL is never started in completely empty state. If it was, nothing would happen. It would stay empty. It would need an initial state setup like any other CA , like creating a ball of max dense energy ies?

Thanks to Sinisa I was rewatching and noticed at some point he explains relationship between number of dimensions and number of neighbors in CA. Elle, You obviously don't know much about CA. You do realize that a QC used qubits which are something such as the polarization of a Photon. Probably you could use a QC to do the calculations, but that's it, you could do the same calculations with a PC, only slower.

And you still need to answer my question what the interaction will be between 2 cells. I'm guessing in your case pressure, momentum, perhaps viscosity because you're a fan of LBM what else? LBM obviously cannot create the all known particles in the Standard Model and calculate their interaction for example. The cellular automata paradigm presents some weaknesses inherent to its discrete nature. Lattice Boltzmann LB models have been proposed to remedy some of these problems, using real-valued states instead of Boolean variables.

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Not all CA. There many different types of CA. There are also continuous state CA types. It's like multiplication and addition, they look the same but they are not the same. The math is different. It's also explained in the paper I linked to. But if you personally feel that they are the same than sure, why not, you can consider them both CFD models. I'm not going to waste anymore time on semantics. For example search Google for: "The cellular automata approach is based on an advanced lattice Boltzmann technique for a discrete microscopic description of the fluid flow. I think what is going on is most resources in the internet written in a way to prevent people mixing them up.

They write it that way, because there is a distinction that you are not willing to accept or grasp, where the LBM dissipates energy and dies down vs. CA that keep on 'automatically' going:. It was a precursor to the lattice Boltzmann methods. No energy is ever removed from the model, either by collisions or movement, so it will continue indefinitely. Think of a computer using bits and boolean operations, the program can go on automatically, and won't die down because it doesn't dissipate energy.

Post your email address on your blog and I'll email you, how you might simulate all the laws of the Universe with one basic CA-like model. I was just honestly trying to help you learn and fix your misconceptions but you have many and adamant on keeping them. There is no point arguing anymore.

## It From Bit: Is The Universe A Cellular Automaton?

I posted here links to some of my blog entries many times whenever I felt their content is relevant. And you wrote yourself, "most resources in the internet written in a way to prevent people mixing them up". Don't you think that if LBM was a CA that 'resources' would just state so, instead of now 'preventing' this from happening?

LOL, I don't want to share them 'just' with you, it looks like you're paranoid for getting an email. This is Ethan's blog and it seems like we're the only ones left interested in this topic. I do have my own blog, but it are different fragments, in an email I can have it all explained in a more organized fashion, from the ground up based on GoL, that's all. I could turn it into a new blogpost though … Maybe Ethan could also invite me do a guest post here. Come to think of it, I don't think I ever saw anywhere a full precise definition of what is a Cellular Automaton. By precise I mean a definition including all theoretical possibilities for cell states and update rules etc.

Nobody is claiming such thing here. Think how water molecules act out mathematical quantum rules in micro scale just like a computer , to create world of fluid mechanics which is working with different laws compared to water molecules.

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A fish in water would probably think, idea that water is made of extremely tiny molecules that follow the rules of QM not rules of fluid mechanics! Ragtag Media: Sorry that it looks like it was actually CFT who was talking like we are claiming reality is someone's computer simulation. Philosophically you could say that our brain is a computer, it's a circuit of 'transitors' that run our thoughts and draws conclusions.

Look at the advancements of 'neural' networks. Now the argument is, you can 'never' simulate a brain with a 'computer', be it classical or quantum, because of the enormous amount of cells and connections, but what if you grow your 'own' brain computer out of a kind of Molecular, cellular DNA you constructed. Have you than in that case 'simulated' a brain in which zillions of different possibilities interactions happen. And finally let's say you create in the same way a DNA that emerges into a brainlike cellular model, but one in which Proton, Electron and Photon cells emerge who have Quantum Mechanical properties aren't you than able to simulating life?

By esiegel on September 26, Encoded on the surface of the black hole can be bits of information, proportional to the event horizon's surface area. Image credit: T. The idea of a self-excited circuit was first presented by Wheeler; as an observer views the Universe, it causes reality to self-create in a certain sense. This was the crux of the 'It from Bit' idea.

Image credit: Christopher Langan. The Computer, the Universe, and John Wheeler. It was an unassuming blue-grey volume tucked away in the popular science section of the Siskiyou County Library. Published in , the book looked as if it hadn't been touched in the decades since John Archibald Wheeler I just learned the very sad news that John A.

http://blacksmithsurgical.com/t3-assets/in/russia.php Wheeler has passed away. Wheeler was one of my heroes and inspired me in many ways to be where I am today. I'm buried under a heap of work today, but will write more when I can come up for air. Below I've pasted a post from my old blog describing a…. If that seems too intangible, how about no lines at all, just points?

This fun little toy, called MandelSwarm, allows you to explore the Mandelbrot set with "magnetized particles. Don't look at the CA but what the CA does. Instead of bits, it would be based on qubits" Earlier thinking assumed reality as a CA on a classical computer system, which is clearly impossible. Anonymous Coward, Can you give an example?

Frank -- multiple great comments! Published by World Scientific Publishing About this Item: World Scientific Publishing, Condition: Brand New. In Stock. Seller Inventory X. Condition: UsedAcceptable. Published by World Scientific Publishing Company Ships with Tracking Number! May not contain Access Codes or Supplements.

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Seller Inventory NEW Seller Inventory Xn. Seller Inventory X Item added to your basket View basket. Proceed to Basket. View basket. Continue shopping. Title: cellular automata discrete universe. Results 1 - 24 of United Kingdom. Search Within These Results:. Seller Image. Moreover, they appear to capture many essential features of complex self-organizing cooperative behavior observed in real systems. This book provides a summary of the basic properties of cellular automata, and explores in depth many important cellular-automata-related research areas, including artificial life, chaos, emergence, fractals, nonlinear dynamics, and self-organization.

It also presents a broad review of the speculative proposition that cellular automata may eventually prove to be theoretical harbingers of a fundamentally new information-based, discrete physics. It contains an extensive bibliography and provides a listing of cellular automata resources available on the World Wide Web.

See All Customer Reviews. Shop Books. Add to Wishlist. USD Overview Cellular automata are a class of spatially and temporally discrete mathematical systems characterized by local interaction and synchronous dynamical evolution. Product Details. Average Review. Write a Review. Related Searches. This volume, with a foreword by Sir Roger Penrose, discusses the foundations of computation in This volume, with a foreword by Sir Roger Penrose, discusses the foundations of computation in relation to nature.

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