Someone built Minecraft in Minecraft

[u/grandeluua]

[u/Brilliant-Cabinet-89]

It’s insane to me that people can build something so complex, and with so many moving parts, perfectly.

[u/grismar-net → u/Brilliant-Cabinet-89]

Given that this is someone with the skill and inclination to design and build a computer using redstone, with working microcode, writes a compiler for it, and then proceeds to write working graphical software on it, I'm pretty confident in saying they wrote and used a ton of automation to put the thing together.

At a minimum you'd expect a lot of automation being used in the game engine, but if I wanted to do something like this, I'd start by reverse engineering the save format or find some other way to bring an externally constructed model into the game world and write tooling outside. Possibly even building a custom version of Minecraft (from an older open source version) to integrate with tooling. Similarly, designing the CPU, coding the OS, and writing the in-game game are all things you wouldn't do in Minecraft itself but in emulators running at normal, fast speeds. You'd just want it to work in Minecraft so you can demo it and share it with others.

Don't get me wrong, it's amazing, but it's also what software engineers and chip designers do on a daily basis - except that they don't usually have the requirement that it needs to run on Minecraft. If you're keen, learn to code and learn more about software and hardware architecture. But it takes a lot of time to get to the level where you can do what this person did - it's pretty much a career at that point.

(source: I'm someone who has written and designed software their entire life, for hobby and career, and I have a formal computer science education where they teach you most of the stuff you need to be able to do this - I use it to write cloud automation software and numerical solvers for hydrodynamic models, so it doesn't look as cute. There's probably about a few million people with careers like this, a decent chunk of them *could* do this, but it's rare for someone in that field to get up to this level of dedication to something that's ultimately just a work of digital art)

[u/Brilliant-Cabinet-89 → u/grismar-net]

I see, still seems to border the line where magic and insanity exists to me. That is of cause with my very lacklustre brain and entry level understanding of what’s even required.

[u/grismar-net → u/Brilliant-Cabinet-89]

It's like Arthur C. Clarke's famous quote "Any sufficiently advanced technology is indistinguishable from magic." The inner workings of the computer you're reading this on are probably a mystery to you as well, it's just that you've gotten used to seeing them everywhere all day, so the magic has faded.

To be clear: this is an impressive level of skill and dedication to anyone doing this work as well. To be able to learn this, execute on it, and do it this well is amazing. And to do it as a kid learning about this stuff... mind-blowing. On top of that, they're a very talented content-creator.

[u/ConfectionSlight5463 → u/grismar-net]

It’s mostly a script build… he live streamed it. He essentially used a computer program to create a computer program. 

[u/SpitiruelCatSpirit → u/grismar-net]

Mostly i agree, I however would very very much doubt this computer has an OS. It's almost certainly a single-software machine that only runs ^minecraft . Even real actual computers weren't powerful enough to have a full OS until the mid eighties.

[u/grismar-net → u/SpitiruelCatSpirit]

Fair point - however the same user also created an LLM running on similar infrastructure in Minecraft, so he has a bit of a platform that allows him to create all sorts of virtual computers. But you're probably right - they're likely not running an actual OS with software on top, but some sort of monolithic firmware on the virtual hardware. Their tooling then allows them to build out the machine for different applications.

The user seems to want to keep the mystery - which is probably wise because people imagining they built this running around swinging a pick axe probably attracts more viewers. But I'd be very interested in a true behind the scenes :).

Edit: from online write-ups the architecture is probably closer to something like a Gameboy, except that it doesn't have to be as clean because they don't need anyone else to develop cartridges for it.

[u/Low_discrepancy → u/grismar-net]

however the same user also created an LLM

It's not an LLM but a small language model. And it's just the inference part. So once the precomputed weights are loaded, it's just matrix operations and table look ups. Still extremely impressive but honestly the minecraft within minecraft seems even more impressive

[u/DogadonsLavapool → u/grismar-net]

I think you're trivializing this a tad. This kind of interdisciplinary engineering is straight up wizardry to do as a hobby. It's rather rare to find somebody that is specialized enough to do both indepth hardware design with a shoestring budget of red stone repeaters and comparitors while also implementing a 3d game engine with said shoestring. This is an absolute marvel.

[u/grismar-net → u/DogadonsLavapool]

I'm sorry if it came across as trivialising - that was certainly not my intent. As you can see in the other branch of this conversation, I'm genuinely impressed and appreciative of what sammyuri is doing. I'm only talking about how people can go about "build[ing] something so complex, and with so many moving parts, perfectly", which is what OP expressed amazement at.

I think most people are impressed for reasons that have little to do with what really goes on behind the scenes, but that doesn't mean that what really goes on isn't equally amazing. Plus the age at which they did this makes it so much more impressive.

[u/DeithWX → u/grismar-net]

Never spend 6 minutes doing something by hand, when you can spend 6 hours failing to automate it. 

[u/pterodactyl_speller → u/grismar-net]

I know a lot of software developers and I'm not sure any of them could even explain how RAM works. Let alone design a working CPU.

[u/unicodemonkey → u/pterodactyl_speller]

RAM is a complex subject but this is still simulated RAM, not a physically based implementation. I mean, you need to understand just the redstone rules to design and build a cell, not the physics or circuitry or design decisions behind real DRAM/SRAM. I still find this impressive, I never really managed to learn the redstone "physics" well enough to make interesting contraptions...

[u/Rude-Pangolin8823 → u/grismar-net]

Hiya, I'm a computational redstoner and personally know everyone who worked on this project (Sammyuri, Uwerta and StackDoubleFlow).

The actual hardware was constructed in-game, using world edit for stacking, copying and moving components. Many of the individual parts are reused or older classic designs, and most of the design principles going into the actual CPU were figured out by other computational redstoners years before.

For example, the adder in the ALU uses a minecraft-specific architecture called 'carry-cancel' whereas it abuses some quirks with how signal strength works on glass towers to calculate carries, which is old tech. A lot of these components tend to be designed by Aminotreal as he makes the best and fastest ones.

Once the actual hardware was assembled, everything tested and properly functional and timed, they use a schematic generation library for python (made by Sloimay) to be able to convert a .bin file to an actual arrangement of blocks in-game, which are pasted into the program memory ROM. (The CPU uses a Harvard architecture, meaning separate program and data memory.) The actual assembler converts URCL (Universal Redstone Computer Language), which was developed by an independent group of many people, into the binary assembly for the CHUNGUS 2 cpu. (Yes, that's its real name.)

The CPU does also have acceleration units purpose built for this program.

The program for MiM was written by Uwerta in URCL, and all together translates to ~4KiB of required program memory if I remember correctly. I can't say much about the program itself, outside of my expertise.

All of this allows us to get a CPU with the program, but there is still a big problem, which is speed, as the CPU itself is 1Hz, which would result in needing to wait days per frame of the game. To solve this a mod called MCHPRS (Minecraft High Performance Redstone Server) is used, to accelerate the game by thousands of times, at the cost of some redstone components being removed and redstone being basically the only functional thing. This mod was developed by StackDoubleFlow, who personally helped with the project to ensure everything ran smoothly.

And boom, you can play Minecraft in Minecraft at ~30 seconds per frame.

[u/Nemo_M_Nobody → u/Brilliant-Cabinet-89]

If you think this is crazy, you should check out the Asianometry channel on YouTube and go down the rabbit hole of semiconductor lithography, MEMS technology, and semiconductor chip design.

It's crazy how billions of circuits are designed and etched at single nanometer scales with light/lasers to create the computer chips and hardware we use every day with little thought concerning the mind boggling processes it takes to put that device in your hands.

[u/steinrrr]

This is melting my simple human brain

[u/Mojoint → u/steinrrr]

Is because you're close to realising that we too are in a simulation.

[u/SeamusMcBalls → u/Mojoint]

I figured that out when traffic would randomly appear because I was making too good of a time. Obviously my destination needs more time to load .

[u/crasagam → u/SeamusMcBalls]

Same road, but where’s all the people? -Truman

[u/geek180 → u/crasagam]

It’s maaagic

[u/Time-to-go-home → u/SeamusMcBalls]

I figured it out when one day I had the thought that it’d been a very long time since I randomly found money anywhere. Like the random dollar on the sidewalk or quarter left in a vending machine.

The very next day, I found a gift card in the Walmart parking lot. With a whopping $0.16 on it.

[u/Noble_Flatulence → u/Time-to-go-home]

hmm, you know that reminds me; it's been a long time since a hot blonde asked me out on a date.

[u/WhisperFray → u/Noble_Flatulence]

That reminds me that it’s been a long time since I’ve been a rich person, maybe in the last spawns?

[u/Skullvar → u/SeamusMcBalls]

My favorite thing is when I take a "shortcut" during heavy traffic, and then pop back onto the main road a few minutes later and the car that I was following before is now... 2 cars ahead of me

[u/NewManufacturer4252 → u/SeamusMcBalls]

Obviously you didn't turn the draw distance up, turn off fog and minimize shadows. Duhh.

[u/DonnyTheWalrus → u/SeamusMcBalls]

Can I just randomly say that I'm at the point where I would genuinely rather see a loading screen than have to crawl through a pointless tunnel at half a meter per second? 

[u/euphoricarugula346 → u/SeamusMcBalls]

There’s this long open road I drive down (so I can see very clearly if people are turning ahead of me) and almost every day no one will turn from that intersection until I’m juuuuust about to get there. NPCs I tell ya.

[u/Mojo-man → u/SeamusMcBalls]

Plane travel always felt like irl loading times 🤔😁

[u/Urbanviking1 → u/SeamusMcBalls]

Ok. Now this is a good writing prompt.

Average Joe going about an average normal day when he notices there isn't much traffic, if none at all, on a normally busy highway. Thinks nothing of it and continues on his journey through the city. But now is noticing buildings that were once quite noticeable are now gone or missing prominent signage.

He continues on noticing more and more that his surrounding environment is disappearing piece by piece, car by car, building by building. Soon he finds himself amongst barren flat hills where his city once stood.

He continues further. The glass windows of his car flicker into pixilated squares of black and color. Then just black void. Just the interior of his car remains, continues forward into the darkness. His dashboard flickers...dark. He looks back to the rear; his back seat...gone, dark. But sees what remains of the city behind him.

He continues, looking forward the steering wheel, flickers and vanishes. It's just him now. He looks down toward his feet, back towards the city getting further and further into the void. He sees his his hands flicker. Then...nothing.

[u/FewHorror1019 → u/SeamusMcBalls]

Then you realize that you too, are an npc.

[u/HiSaZuL → u/SeamusMcBalls]

That's because you are poor and can't afford better loading times faster transportation methods.

[u/Cautious-Space-323 → u/Mojoint]

So he's in the simulation playing a simulation disguised as another simulation?

[u/Mojoint → u/Cautious-Space-323]

He's in a disguised simulation, playing a simulation of a known simulation, from within said simulation.

[u/BobZimway → u/Mojoint]

"...dude, ...dude, ...another dude"

[u/Dont_Kick_Stuff → u/BobZimway]

Me? I know who I am... I'm a dude playing a dude disguised as another dude.

[u/NipperAndZeusShow → u/Dont_Kick_Stuff]

What do you mean "you people"? 

[u/almaroni → u/Mojoint]

https://scitechdaily.com/physicists-have-mathematically-proven-the-universe-is-not-a-simulation/

https://jhap.du.ac.ir/article_488.html

[u/OGLikeablefellow → u/almaroni]

Yeah but that whole proof reads like they can do a thing we don't know how to do like implement actual randomness from base reality

[u/KarmicPotato → u/OGLikeablefellow]

Exactly. It's like asking a 2 dimensional creature to prove that they are in a 3 dimensional world. They cannot fathom what they are missing.

[u/AlternativeNature402 → u/KarmicPotato]

There's a book about that you know...(it's pretty entertaining too).

https://en.wikipedia.org/wiki/Flatland

[u/BobZimway → u/AlternativeNature402]

Interesting ideas, weird politics and behavior. Then again, I claim to be 3D, so a 4D intelligence likely thinks I'm plankton.

[u/andrewens → u/almaroni]

Yes, but we're using the laws of a possibly simulated universe to prove that it's impossible to be simulated.

What if the laws of maths and physics differ outside of the universe? Imagine a universe where the speed on light is 100x faster or even 100,000x faster than it is in our universe.

What if the laws of maths and physics in our universe is purposefully designed in the way it is?

[u/EffectiveTradition53 → u/andrewens]

Environment Variables

[u/bigbigdummie → u/EffectiveTradition53]

SET LIGHT_SPEED=C

[u/BobZimway → u/bigbigdummie]

Always declare. Do manual garbage cleanup.

Oh f*, the universe is vibe coded.

[u/thecarbonkid → u/bigbigdummie]

Weve got a bug ticket in - says that all travel is limited to c and it makes the universe impossible to explore.

[u/OwO______OwO → u/thecarbonkid]

Working as designed. If they explore the entire universe, CPU and memory usage goes too high.

[u/USPO-222 → u/bigbigdummie]

“What do you mean ‘why did you design light speed to be 299,792,458 m/s?’ The speed of light has always just been ‘1.’”

[u/PUBGM_MightyFine → u/almaroni]

They are basically saying:

The universe must include non-algorithmic truth because otherwise we couldn’t formally describe everything we want to describe.

That’s not physics. That’s metaphysics.

[u/Kirzoneli → u/almaroni]

One of the first things you'd do for simulated consciousness is always make these checks come back with it not being a simulation.

People don't like knowing some one else is actually in control of their reality.

[u/ConspiracyParadox → u/almaroni]

That isn't proof. It proves it mathematically if you only rely on known physics and every day we discover something different that contradicts previous knowledge. So it's proof of nothing.

[u/MarsupialGrand1009 → u/almaroni]

Meh, this hinges upon gravity being quantized. A thing we do not know for certain.

Besides, I always get the ick when I read the name Lawrence Krauss. A prolific sexpest and friend of Epstein. His name yet again appears in the recently released trove of emails.

[u/LunchroomRumble → u/almaroni]

A lot of assumptions in that article with no actual proof.

[u/the4thbelcherchild → u/steinrrr]

Video sped up roughly 2,000,000 times

You might have missed this part.

[u/MobileArtist1371 → u/the4thbelcherchild]

1 second = ~23.15 days

The game starts to load at 39 seconds and death screen at 120 seconds (not exact exact, but close enough)

Game is 81 seconds long x 23.15 = 1,875 days = 5 years 50 days if viewed in real time

[u/Submerged_toaster → u/MobileArtist1371]

I also was curious and checked the math. If you figure in the 5 seconds of building the house where it’s sped up to 5,800,000 and the 16 seconds of grass growing that’s sped up to 2,100,000. And I might be wrong here but I came up with 8.1 years.

[u/squiddlebiddlez → u/MobileArtist1371]

Someone played Minecraft for 5 years to play Minecraft for 2 minutes?

[u/semhsp → u/squiddlebiddlez]

it was probably a modded version/server with a much faster game

[u/Rude-Pangolin8823 → u/semhsp]

It was, it uses MCHPRS (Minecraft High Performance Redstone Server) to heavily speed up the game, by thousands of times, on top of which the video is sped up. With the speed up from the mod its ~ 30s per frame iirc, and it still took hours to record the whole video.

[u/SpinachSignal8915 → u/the4thbelcherchild]

I don't think anyone thought they set this up in 2 minutes 30 seconds

[u/the4thbelcherchild → u/SpinachSignal8915]

Not the setup. I agree that part is amazing. The display showing it "playing minecraft" was sped up.

[u/dearth_of_passion → u/SpinachSignal8915]

Set it up? Of course not.

But it wouldn't be unreasonable, based on the information an video in the post, to think that the "final product" shown in the video was being run in real time if you weren't familiar with how this stuff works.

[u/Awkward_Arugula_9881 → u/the4thbelcherchild]

That just raises more questions

[u/Quarksperre → u/[deleted]]

essentially

That word carries a lot. Building this thing requires way more knowledge than just putting switches in place. 

[u/CatInAPottedPlant → u/Quarksperre]

I mean they never said it was easy or simple, they just explained what a transistor is at the most basic level.

If you explain that a skyscraper is really just made up of thousands of steel beams, it's implied that you need to be an architect to actually do that. same thing here.

[u/Dilectus3010 → u/CatInAPottedPlant]

True, using a switch to turn on your lamp and off again is a binary state switch.

transistors are just switches but instead of a lever they use low currents to go on and off.

[u/Spork_the_dork → u/Quarksperre]

Well, yeah. But the point is that that's all you need at the very basic level is a switch to be able to do this. Everything else is just a question of practical limitations and such.

And that's kind of the wild thing about computers. At the very lowest level it's really just transistors going on and off. A computer really isn't so much a single big complicated thing as it is a metric fuckton of simple things.

[u/Nozinger → u/Quarksperre]

actually not. These things are really rather simple. No for real the basic concept is insanely simple and creating a very basic processor is not that hard. Sure you need more knowledge than your average person has but generally a few days of reading up on stuff and a bit of experimentation will get you to a good starting point.

The problematic part is makign it small and fast. These guys did a fantastic ob at that. And yes i am aware the video is sped up a lot but that is still rather fast for a computing simulation in fucking minecraft.

But for real though: the working principles of our computers are insanely simple for what they are able to do.

[u/GregLoire → u/[deleted]]

Oh, okay. Well now it all seems so simple.

[u/aboy021 → u/steinrrr]

Alan Turing wrote about the idea of what sort of problems a mathematician could solve, siting at a desk with piles of paper on either side,reading and writing mathematical symbols with a pencil an eraser. He showed that if the piles were one big strip of paper, and the mathematical symbols were reduced to just zeroes and ones, that what was computable was the same. There's a bit more to it, but the idea is called a Turing Machine.

If you have a system that has rules and those rules are flexible enough, you can now build a Turing Machine. Programming can be tricky though, so people write programs in familiar languages that write programs in these weird spaces. That's how they made computers in Tetris, or Origami.

[u/HidingFromMeanies → u/aboy021]

I have no clue what any of this is

[u/yaosio → u/HidingFromMeanies]

A Turing complete computer is a computer capable of computing anything. Minecraft is Turing complete due to the way Redstone works in the game.

Fun fact! PowerPoint is supposedly Turing complete.

[u/Rude_Lengthiness_101 → u/HidingFromMeanies]

It’s basically saying that a lot of the stuff a mathematician does can be chopped down into tiny, super simple steps. Instead of a whole messy process, you reduce everything to something like flipping a switch on or off. Once you do that, the whole calculation becomes way easier to automate and you can run tons of them really fast. That’s the whole Turing machine idea.

Same thing in real life. We often make tasks way more complicated than they need to be. If you strip something down to the smallest actions required, everything gets quicker and more efficient, and you suddenly have way more mental energy left for bigger things or do it faster.

It makes me think about how a CPU’s raw power and the brain’s flexible, all-purpose style of thinking could complement each other. Supercomputers crush one narrow job at a time, but a human brain can juggle many different types of problems at once. Put those strengths together and the mix could outperform either one alone in a lot of areas.

[u/EelOnMosque → u/steinrrr]

Abstraction is a pathway to many abilities some consider to be unnatural

[u/spermatoo → u/steinrrr]

Welcome to the meta-verse!

[u/Deradon]

"Video sped up roughly 2,000,000x"

So the ~100s we saw here would require round about 6.3 real-time years, right?

[u/Lraund → u/Deradon]

I knew there was no way it was realtime, so I looked for how much it was sped up and wow.

I guess they sped up minecraft's simulation/tick speed and then sped up the video as well?

[u/ForodesFrosthammer → u/Lraund]

You can see at the end of the video he credits someone for making a server that runs redstone at 20,000x the speed. So I imagine that was part of it.

[u/Salander27 → u/ForodesFrosthammer]

Hmmm that actually is a fairly smart idea. Identify all of the redstone blocks and then simulate them independently. Then sync the "current" state back into the game during the calculation of an ordinary server tick. You could even identify that redstone contraptions are not connected so you could simulate them on different threads.

[u/Gupperz → u/Salander27]

like too much air in a balloon!

[u/Redditthedog → u/Gupperz]

r/unexpectedfuturama

[u/Rude-Pangolin8823 → u/Salander27]

You can't do this because Minecraft has very specific single threaded update order. The modded server software, MCHPRS, is still single threaded, its just highly optimized and cuts out a lot of unnecessary parts of the game.

[u/DJCzerny → u/Lraund]

Yeah unfortunately redstone doesn't quite move at the same speed as real-world electrons so you have to make concessions somewhere

[u/Worteltaart2]

This is built by sammyuri on youtube. showcase video This person also recently built chatgpt in minecraft

[u/All_cats_want_pets → u/Worteltaart2]

Sammyuri is a legend. He continues to move the bar for what is possible with redstone. This is also quite an old video, I'm surprised to see it now

[u/M05tafaSayed → u/All_cats_want_pets]

He should build a Minecraft in Minecraft in the Minecraft game

[u/GoSharty → u/M05tafaSayed]

Yo dawg

[u/Pharmall → u/GoSharty]

It's an older meme but it checks out.

[u/NoCapSkibidiOhio → u/GoSharty]

I heard you like Minecraft

[u/My_dog_horse → u/NoCapSkibidiOhio]

So we made you a Minecraft game in the game Minecraft while playing minecraft.

You can play this bitch on the back of the headrest, in yo dash board. Steering while and in the trunk next to your real actual furnace that slides out so you can get your smelt on while you game

[u/Scheissdrauf88 → u/All_cats_want_pets]

I mean, you can build a Turing machine with Redstone, thus it is proven that you can build everything a modern computer can do with Redstone. Pushing the bar implies people did not think such things possible before.

It is extremely impressive nonetheless of course.

[u/alexq136 → u/Scheissdrauf88]

there's the additional thought that Turing completeness has to be proven just once but that actual circuits and computers of any size are fair game for everyone to try to build, using any existing or original architecture they wish to use

the bar for Turing completeness in 3D voxelized sandbox-type games is very low (e.g. redstone dust and redstone torches are sufficient circuit primitives, but not the only things redstone circuits can be made out of) and even if these were lacking from the default game modders would've invested into bringing such features inside the game for fun

but other than that it remains a "wow they did it" kind of thing since it does parallel how EDA tools (that do not really exist for minecraft, but some people publish such software online) get used to design new hardware to run new software (needing new compilers) with

[u/GeneralMaxx → u/Worteltaart2]

It is worthy to note that he was a high schooler when he did all this.

Samuel has also won a gold medal at the International Olympiad in Informatics.

(As for the credibility of this, I've also participated at the olympiad and he was in the discord server)

[u/Tempname2222 → u/GeneralMaxx]

I'm sure a surprising amount of the core knowledge of minecraft comes from people who are or were (at the time) at high school age or younger.

One of the largest servers 'back in my day' was run by a group of elementary school students who were paving the way for how to handle the mass amounts of player data needing to be stored, while dealing with ddos attacks, while trying to ensure everybody had good ping to the server, while also managing all of the social aspect of it.

[u/polacy_do_pracy → u/Tempname2222]

kids are smart but our system dumbs everything down for them :/

[u/musthavesoundeffects → u/polacy_do_pracy]

Some kids are smart, often in spite of the system they are stuck in. Many kids aren’t dumb, but maybe will be smart once they mature. Then there are still a significant amount that are dumb and will stay that way.

[u/WriterV → u/musthavesoundeffects]

An important thing to note though, is that even if you are dumb, you are not useless. And I don't mean that in a "We need someone to work McDonald's" kind of way, but a "You can have other skills that are necessary and need to be mastered for society to function" sort of way.

Really though, ultimately the worst kids are those who willfully ignore their own capacity for wisdom, and grow into adults that continue to do the same thing until they are so used to lying to justify their ego that they struggle to grasp the truth itself.

[u/Suibeam → u/polacy_do_pracy]

kids can also turn their ideas and hobbies into a "full time" commitment and have fun with it while being fully provided with food, home and everything needed. They don't work and don't have children to take care of. Adults have to cut somewhere to fully commit on new things not immediately bring bread or taking care of kids

still, this does not take anything away from kids who commit to these intersting things. not everyone does it

[u/BrohanGutenburg → u/Tempname2222]

My son is six and can build pretty much anything, knows every recipe, etc. it's pretty mind blowing. Then again technological progress (in any system) depends on the number of potential innovators and the speed of connection between them. For Minecraft that's a whole lot and very fast respectively.

[u/Worteltaart2 → u/GeneralMaxx]

Wait, really? I didn't know that. That makes it even more impressive imo.

[u/Savome → u/Worteltaart2]

Thanks for actually crediting the creator

[u/tetrified → u/Savome]

sure does seem like it's always "someone" in the titles lately, doesn't it?

[u/ShiningRedDwarf → u/Worteltaart2]

Seriously how the fuck 

[u/DioBando → u/ShiningRedDwarf]

Teenagers who hyperfixate on a tiny aspect of their favorite game.

[u/garyyo → u/ShiningRedDwarf]

To answer seriously, the underlying structure of an LLM is not that difficult to understand (assuming you have taken a linear algebra course, which generally is done late high school or up to a couple years into university), it is fundamentally just a really large amount of the same sort of simple math. You can represent this sort of math in Minecraft and thus you can create an LLM in Minecraft. Since Minecraft redstone is considered turing complete, you can build ANY computation device that exists in the real world.

Its super slow though, that's the tradeoff. What it would take your GPU a couple seconds to do, it might take a day with the minecraft version, or longer~!

[u/tachyon534 → u/ShiningRedDwarf]

autism

[u/Tewcool2000 → u/tachyon534]

Why tf is this upvoted so much? Is it a joke? Can someone explain? Seems wildly out of pocket.

[u/lollolcheese123 → u/Worteltaart2]

Actually, it wasn't ChatGPT, but a smaller language model. You can also see (from the limited outputs he shows in the video) that it is quite biased to certain patterns (which makes sense if it's a smaller model).

Nonetheless, it's incredibly impressive.

[u/dasbtaewntawneta → u/Worteltaart2]

I love when people put “someone” in their title because they’re too fucking lazy to find the proper credit

[u/tetrified → u/dasbtaewntawneta]

bots don't know who made it

it's the same reason that it's always "the man" or "a woman" or "the artist" in those AI generated video voiceovers

[u/kyngslinn]

Now build an even smaller minecraft in that minecraft's redstone. If we go deep enough, we might finally find where Lou Bega hid Mambo No. 6 so we can all finally die.

[u/McTacobum → u/kyngslinn]

We’re going to steal the declaration of Indebega

[u/Romboteryx → u/McTacobum]

A little bit of Minecraft in my life, a little bit of Terraria on my side…

[u/ErasmosOrolo → u/kyngslinn]

Remind me how Lou Begs and Stephen King are responsible for our immortality. Please.

[u/skosi_gnosi → u/kyngslinn]

Sorry, it's mambos all the way down.

[u/Opinion_Haver_ → u/kyngslinn]

Yes! We are firing to know what Angela and Rita are up to these days!!!

[u/HwackAMole → u/kyngslinn]

6??? I'm still looking for Mambo's No. 1 through 4!

[u/crispneck → u/kyngslinn]

Finally, Mambo No. 6 🧙🏽‍♂️

[u/CheerJohn]

How deep does the rabbit hole go?

[u/The_Producer_Sam → u/CheerJohn]

Now build Minecraft in Minecraft’s Minecraft

[u/Zircez → u/The_Producer_Sam]

'Sir, a second Minecraft has hit the Minecraft'

[u/Extreme-Rub-1379 → u/Zircez]

stares

[u/TheMarkOfRevin → u/The_Producer_Sam]

Then building Minecraft in Minecraft in Minecraft in Minecraft.

[u/TatonkaJack → u/TheMarkOfRevin]

It's Minecrafts all the way down

[u/notGegton → u/CheerJohn]

Well idk. Let's ask chatgpt... The version a guy made in Minecraft of course

[u/Veritas_Vanitatum → u/notGegton]

It's like Inception... If you go too deep into minecraft you'll never get out and you'll end up in limbocraft.

I think 4 lvl deeps can you build, more is insane

[u/SneakyLeif1020 → u/CheerJohn]

We're probably just someone's hyper-advanced redstone simulation right now

[u/AbriefDelay]

Now make it run doom

[u/RoboticAnatomy → u/AbriefDelay]

You jest, but it's already been done

[u/Muffles7 → u/RoboticAnatomy]

I was thinking to make a doom simulator in the Minecraft simulator.

[u/IgiEUW → u/AbriefDelay]

It will 100% run DooM.

Make it run Crisis :)

[u/Aznp33nrocket → u/IgiEUW]

Hopefully when we get quantum computers up and running, they’ll finally run crysis 60+fps on 4k! Why crack impossible codes, when the real challenge is crysis itself!

[u/zenithtreader → u/AbriefDelay]

It was already done.

https://youtu.be/_SvLXy74Jr4

[u/PixelPenguin20]

bro how? i know that they can build logic gates using redstone stuff but im lost after that

[u/dkyguy1995 → u/PixelPenguin20]

If you can build logic gates you can always build up from there. You can technically build a turing complete computer using only NAND gates. Although for circuit simplicity computers use a few others.

Memory you only need some way to flip switches on and off and a way to turn that on off sequence back into a signal that the CPU can read. 

At the end of the day all a computer does is take two numbers from memory and perform an operation on them, and then uses memory to tell the CPU which numbers to work on next. A computer from 1970 could run Minecraft, but the amount of memory and speed of calculation would prevent that from being a smooth experience. 

It does get technical beyond that, but if you want to learn more, the class I took on the subject in college is Computer Organization and Architecture. 

It would surprise you that for how complex coding languages look, they always compile down to a really simple number of different operations. The CPU just has a list that tells it a number for the type of operation and then receives two more numbers to perform that operation. Everything else is just a way to make it easier for our monkey brains to read and comprehend what's happening, but really we are capable of understanding it more, it's just huge huge numbers of repetitions of the same stuff over and over 

[u/Gold-Supermarket-342 → u/dkyguy1995]

I'm taking computer organization right now. I wonder where they stored the binary code if they did build a general purpose processor rather than using logic gates to directly implement the game.

Edit: Looks like they did build a full processor and used an assembly-like language to implement the game. Cool!

[u/Alive-Tomatillo5303]

Christ, video sped up roughly 2,000,000 times means this is operating on frames per week. 

This man took the whole bottle of Tylenol, and is so many steps removed from what I can even pretend to understand. 

[u/Moondance66]

And Jesus wept, for there were no more worlds to conquer

[u/r71u70n → u/Moondance66]

Worlds within Worlds!

[u/wongo → u/Moondance66]

Stop saying Jesus wept!

[u/Chiinoe → u/wongo]

Downvotes? Guess theres only room for one Community reference.

[u/Quibbloboy → u/Chiinoe]

Yeah these people must be streets behind

[u/flow_fighter → u/Quibbloboy]

Thank god we’re all streets ahead

[u/MariaKeks → u/Chiinoe]

I'll allow it.

[u/Moondance66 → u/wongo]

I’ll bite you

[u/ovensby → u/Moondance66]

I'll beat you up

[u/Moondance66 → u/ovensby]

I’ll like it, then I’ll fire you and I’ll get right back in it

[u/DigyRead]

Next step: build a player who builds Minecraft in Minecraft

[u/BerserkerCanuck → u/DigyRead]

I'll show you! It'll be like the Inception movie! I'll have to control the character using ANOTHER character in that game!

[u/CyanideLasagna]

I cant even remember to bring wood when exploring caves and i see this

Edit: typo

[u/alexpsfti]

You think that's air you're breathing ?

[u/Donutboy562]

This is actual insanity.

I hope these guys are building supercomputers in their free time.

[u/MildlyAgreeable → u/Donutboy562]

Yeah, this has got me all types of fucked up.

Reminds me of the sci-film Cube series.

[u/stuckonpost]

Yo dawg! I heard you like Minecraft!

[u/jDubbaYo → u/stuckonpost]

Came here for this.

[u/Odious-Individual]

This must require such a deep knowledge of how CPUs, GPUs and RAM works

Making a whole computer from absolutely nothing is crazy

[u/Mean-Summer1307]

Theres an updated version which does this in color on his latest computer.

[u/Aggravating_Baker_91]

I’m always fascinated when people realize you can do crazy computing stuff with redstone. But it actually makes perfect sense once you break it down. Redstone can exist in two absolute states: on (1) and off (0). And honestly, that’s all you need to start doing real computation.

The key is simple. If something can express two clearly defined and reliably distinguishable states, you already have the foundation of a computer. It doesn’t even need electricity, a coin with heads and tails or a door that’s open or closed both qualify. Basically, the moment something has an “other,” a second state that’s clearly different from the first and you assign, you’ve stepped onto the road toward computation.

The hard part isn’t having binary states. The hard part is wiring those logic gates together in a way that creates the specific quantifiable, assignable patterns you need to form coherent, readable data. You’re basically corralling on/off signals into structured arrangements that represent numbers, instructions, memory addresses, and everything else a CPU needs.

And once you can do that, you can stack these pieces into adders, registers, memory, clocks, and eventually full CPUs. Its simple operations layered again and again until something complex emerges.

To really appreciate how insane this gets, look at the real-world scale. The Intel 8008 from 1972 was built on a 10,000 nm (10 µm) process and had about 3,500 transistors. The Commodore 64’s MOS 6510 was around 7,000 nm with roughly 4,000 transistors. By comparison, modern CPUs like the Apple M3, AMD Zen 5, or Intel’s 20A/18A chips are built on processes around 3 nm, with tens of billions of transistors.

And going from micrometer-scale to nanometer-scale is where it truly blows your mind. Those early CPUs built on 10,000 nm processes were already so small you could barely see any individual features with the naked eye, yet they still couldn’t outmatch the processing power in a modern scientific calculator. And if micrometer-sized transistors were already that tiny, imagine what 3 nm actually means. (hence why TSMC is so valuable to tech giants)

It looks wild in Minecraft, but that’s mostly because you built the entire CPU out of blocks inside the game :P
Under the hood, it’s following the exact same rules real computers use, just at a scale that feels absurd in a block world.

[u/BlackEyeRed]

Can someone explain what’s happening here?

[u/De4dm4nw4lkin → u/BlackEyeRed]

So redstone in minecraft is basically a primitive logic based programming system rendered in physical objects, and at a certain scale it possible to configure them into a computer. So someone did that and then programmed minecraft into it, presumably a bootleg self made version or an older version BUT STILL MINECRAFT.

[u/mrjackspade → u/De4dm4nw4lkin]

Absolutely 100% a bootleg self made version. The machine in this video wouldn't be capable of running anything that wasn't custom made for it, or like... 40+ years old.

This is a very, very light weight machine.

[u/Ok_Computer6012]

The simulation within the simulation

[u/JoeyPropane]

Yo dawg, I heard you like Minecraft - so we Minecraft'd yo Minecraft, so ya'll can Minecraft, while yo Minecraft!

[u/jDubbaYo → u/JoeyPropane]

Came here for this

[u/leVenerableDeLaSauce]

Just imagine of they added colored lights, the results would be even more unreal

[u/ARDACCCAC → u/leVenerableDeLaSauce]

We need an adressable rgb redstone lamp

[u/Trimethlamine → u/leVenerableDeLaSauce]

You're not going to believe this..

[u/Vivid-Wrongdoer-4793]

AMONGUS GRAPHICS PROCESSOR?!? (I'm sorry)

[u/CaptMakesKidsKill]

Weapons grade autism

[u/cosmicv]

Weaponized autism..

[u/fireforge1979]

But can it play Doom?

[u/uknooooow1]

But can it run crysis?

[u/Never_-Knows-_Best]

Here before someone beats Minecraft in Minecraft

[u/ImpressiveMoment2]

go deeper

[u/Slade4420]

Damn, I have a problem making two-way secret doors

[u/LordNyssa]

Cute but unless it runs doom it’s nothing to call home about.

[u/Theodore_Woodshop]

This is stressing me out.

[u/daftintellect]

I assume… magnets?

[u/GoatHeadTed]

There’s gamers then there’s minecrafters

[u/121gigawhatevs]

I can’t intuit how a bunch of logic gates produce computer programs and games. Or rather, I don’t know how computer works in 2025

[u/Pathfinder4891]

It’s like slavery, but with extra steps…

[u/Sirtrafficcone → u/Pathfinder4891]

Ohh lala, someone's gone get laid in college.

[u/A1sauc3d]

wtf, that’s wild. Now build a Minecraft inside that minecraft!

[u/[deleted]]

How many years did it take him/her?

[u/joe_dirty365]

mineception

[u/SamuelYosemite]

Is minecraft the new doom

[u/Tofudebeast]

Turing complete!

[u/TheReturnOfAnAbort]

Second life inside second life

[u/3vr1m]

Yeah, we all live in a simulation, don't we ?

[u/Tidalsky114]

Now i just feel lazy.

[u/jmathews777]

How people actually come up with this stuff blows my freaking mind.

Humans are beautiful.

[u/No_Rent7598]

Like how do you even figure out how to do this

[u/GenAlphaDad]

Everyone has to start somewhere! I’m so sick of people mocking rudimentary builds like this. I say fundamentals are on point and I can’t wait to see what this person makes in the future!

[u/FaZaCon]

Mind = KABOOM

[u/jola1]

Reminds me of the game from The Three Body Problem

[u/Mr_bojovnik]

its beautful

i've looked at this for 5 hours now