Scicraft 420: Getting a Command Block in Vanilla Survival

It's finally here! Command blocks on Scicraft!
Links:
My Prototech video where I explain the basics go watch:
• Obtaining Command Bloc...
Jor's twitch channel, go follow:
/ jorvp
Myren's Falling Block playlist go binge watch:
• [1.12] Why Minecraft I...
ilmango's bedrock item video:
• SciCraft 157: Getting ...

[@neveragain767]

I forgot a made that comment almost 2 years ago. Love the video, that intro made my day. edit: cant spell apparently

[@ZephyrysBaum]

OMG THE LEGEND THEMSELVES

[@JKM115]

YOU'RE THAT PERSON!

[@thonker7848]

real

[@ZephyrysBaum]

btw i found this comment when it had 0 likes

[@Wertyhappy27]

Chad

[@chudavieets]

I swear to god the way SciCraft gonna end is these megaminds find a way to swap NBT of a wooden sign and a command block so they can give themselves creative mode

[@coderxgamer]

this is already possible with a tile entity swap tmk, but the command block wouldnt do anything cuz they have different nbt tags

[@chudavieets]

@@coderxgamer ik but thats where waiting comes in the play, there certainly must be a way around they will find

[@punchster289]

​@@coderxgamer u cant te swap command blocks bc they dont give comparator updates

[@figboot]

@@punchster289 I thought they had different comparator output based on their command's "success count" when it was last run

[@punchster289]

@@figboot good luck getting a command in there to run

[@t-mixslo]

JKM: this is the most advenced thing you can do in minecraft. Also JKM: observers go blinky blink.

[@punchster289]

be careful. that blinky blink has a tendency to crash servers if ur getting packets too long

[@aloysiuskurnia7643]

also JKM: storaeg thec is my paisson

[@vinicus508]

“A falling unlocked hopper to trigger storage tech people” lol 😂

[@vinicus508]

@Sebastian Moser idk. Pretty sure it’s unlocked hopper though. Cus that’s what storage tech tries to avoid the most

[@vinicus508]

@Sebastian Moser I only read the full thing now lol. No that’s incorrect. Locked hoppers does not trigger storage tech people, its the opposite. Storage tech people look foward to having every single hopper in their builds locked when they are not being used and automatically unlocked when needed.

[@tgrcode]

Being able to modify the binary values of blockstates is just insane, everyone who made this possible should be very proud

[@marqimoth6987]

it's pretty cursed to see someone filling in an end portal in the end while holding 30 dragon eggs

[@ligma445]

I somehow have 2 on my world completely by accident

[@PlanetAstronox]

"And Alexander wept, for there were no more worlds to conquer."

[@potatolad7202]

Man its so fun getting randomly recommended a very normal video about very normal Minecraft players who hold the game in a chokehold and conduct dark acts to create something powerful out of next to nothing just because they can.

[@Robot10599]

I know that the beacons are pretty much the easiest part of all this, but I find it so poetic that you need thousands of the stereotypical “expensive” block to do all of these things.

[@punchster289]

nah we know now u only need one. these setups were experimental and were made with incomplete knowledge.

[@JKM115]

@@punchster289 0 if you have a ton of clustering

[@JKM115]

As Punchster said the beacon tower was the 1st concept setup that ever worked and for a long time nobody really questioned if all of those beacons were necessary. The answer is no lmao. On Wavetech Patreon server we did basically the same thing with just 18 beacons

[@icantthinkofaname4723]

@@JKM115 wait what I just went thru the effort of farming all those beacons to do falling block. And it's not even necessary. AAAAAAAAAAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

[@jeanneymar2390]

@@icantthinkofaname4723 Now that we are 5 months after, did you accomplish what you wanted to do ?

[@Solyolvimir]

This is just the equivalent of making Tri-Dimensional Dark Matter in the real world using glass and fuckin' water. Wild.

[@pepinopepino7]

I love this comment LOL. I always feel like this with these videos but I had never thought about it that way

[@nregitnek]

How much Minecraft knowledge do you have ? SciCraft players: Yes

[@Pheonix19581]

I love the creativity that went into this, and the fact that yall figured this out before you updated to a version where it was made impossible is awesome

[@shadowpanther298]

I find it hilarious he refers to the wizardry he’s doing as war crimes, because they absolutely are. I saw bit only a command block, but also a command block half on one block half on another? That’s a war crime if I’ve ever seen one, and I hate it. Subscribed.

[@beck3319]

This feels like a fever dream, or one of those videos that just use random science terms to sound complicated. "The resonant flux capacitor has to be charged with 18NanoWatts of amperage in order to keep the quantum Teracells active"

[@arkanon8661]

ah yes, just 18 nanowatts this thing be exploding from ambient light in a dark room

[@SnoFitzroy]

@@arkanon8661 LMAO that's what I was thinking. The sentence example technically makes sense, it's just not a thing that would exist irl

[@rpm0618]

Can you post a world download? I wanna do it in my 1.8 hardcore singleplayer

[@JKM115]

Respectable

[@justin.campbell]

Now just swap dirt with a command block, and then use the command block to give yourself 2 dirt. Stonks

[@bluelemon243]

"Nobody want to watch the same thing twice" Me, watching this 10 times:

[@O5MO]

Me, watching it 10 times because i can't understand what Myren said. And then get reminded 10 times to watch Myren's playlist.

[@joantorruella4891]

Next challenge: Obtaining the debug stick in survival

[@punchster289]

no

[@reivax5335]

Thats an hard one

[@jonus5331]

Imposible, all the stuf they obtained are actual blocks, not just items

[@Natibe_]

This is the minecraft equivalent of CERN building the LHC and discovering invisible subatomic particles that make up the base components of the universe.

[@_spey9860]

myren seems to explain things in great detail

[@dustyink.c]

Its been years since I watched sci craft, and I'm glad to watch it again ! Really great content by the way

[@blackiris7714]

This is truly the greatest video of the 21st century

[@nathanielberntson8883]

You are the most insane Minecraft player probably ever bro, this is so absurd. Congrats again, can’t believe this ended up happening!

[@abbyshewrote]

This is a somewhat odd comment but I wanted to say you placed that "subscribe" plug at a great spot - we saw enough to know who you are, what you do, and what the video was! I was really into the video so I was like Oh! I should sub, he's right! Anyways, loved this vid. Look forward to seeing more of your content 🥰

[@Deadchannel06]

I like how you don't click bait I have no idea why your such a small KZbinr I hope you will be this way when you become bigger

[@MsHockeyman12]

Learned more from this 24 minute then I did when j had 75 minute classes

[@TheCptnOfFail]

To oversimplify. You guys have made the equivalent of a particle collider in minecraft and are transmuting blocks into other blocks through tremendous lag and abuse of game mechanics that are so obscure that mojang probably does not know about them? Pretty sure I am nowhere close, but it is almost 3am and this is the answer I have come up with to sleep tonight.

[@SnoFitzroy]

as someone with an equally weak understanding of hypertechnical minecraft but has caffeine in the body, I think you hit the nail on the head, because this is basically what particle accelerators do. Like, no joke, this transmutation stuff can ACTUALLY be used as a way to explain particle accelerators through the lens of Minecraft and I think that's beautiful and I hope hypertechnical minecraft gets more kids interested in science :)

[@IWontBuy-RP]

​@@SnoFitzroyit gets kids interested in minecraft, they'll play minecraft and skip school. They'll be sick every chance they get to stay home. Trust me, speaking from experience 😂

[@syntaxerror831]

Okay, I subbed after seeing the original command blocks in survival video, but the synthy intro has sealed the deal. Love it.

[@CongaYT]

I wonder if it's possible to glitch commands into command blocks, like setting everyone to creative mode

[@evervirescent]

the scicraft finale: using arbitrary code execution to enable commands in vanilla survival

[@justarandomchannel1319]

I'm pretty sure atleast for bedrock idk About Java but to enable command blocks you need to enable a cheat

[@androov2797]

Is it anyhow possible to change nbt data of a command block to get creative? And more precisely, is it fully researched and hence proven to be _not_ possible. Or it _might_ be possible because the research hasn't ended yet? Another question, similar to the first one: is it not possible in newer versions because it's _literally not_? Or, because there hasn't been a deep-enough research for that in newer versions, for whatever reason, so theoretically it could be possible? With a COMPLETELY different setup ofc. And another question that someone already asked in the comments: was there a certain version that broke this setup, or was it just a multitude of updates removing unintended features that were used in this setup - hence breaking it? I really liked the vid, it didn't feel like a long vid although being almost half an hour. I'm gonna watch Myren's vids now to get a rough idea of how exactly everything works. Threadstone sounds really interesting.

[@ShayerSUtsho]

commenting for notifications :D

[@JKM115]

1. The amount of corruption necessary is just astronomical. When it comes to blockstate corruption all it took was to figure out how Minecraft stores blockstates and then it became clear that you can mix bits and convince a game that you have command block bits. Tile entities don't work like that unfortunately. 2. Why isn't it possible? It's just not. 1.13 already changed the data structure that stores loaded chunks to the point where any potential async chunk accesses wouldn't result in a chunk reload. Also in 1.13 population manipulation isn't even possible so that would go nowhere. Do I even have to mention newer versions? 1.14 added a bunch of multithreading safety, 1.15 removed savestates, 1.17 removed tile entity deletion so making b36 is insanely annoying, 1.19 removed normal update suppression

[@sunnywunny]

@@JKM115 astronomical isn't impossible :)

[@raccoonmanthing]

hearing technical people curse is so funny to me

[@SnoFitzroy]

For a moment I was confused why you were mentioning damage values for the player head but then I remembered, you're on 1.12 at time of recording - the flattening hasn't happened for you yet! That's a really clever way to get rare stuff, I love it

[@guty_18]

Going to explain the most advanced techniques in the game and viewers underestimate, but are in able of remembering a simple video to watch next 😂. I’m guilty for it…

[@jorvp]

JKM: Basically. Also: FUCK FUCK FUCK FUCK FUCK

[@gembai]

all this stuff is very impressive also, is possible to get custom heads/player heads (like: notch, herobrine, etc ) at someway? or CWC still being the only method for that? pd: i love the wither made of commands in the thumbnail xD

[@JKM115]

Specific player heads would require NBT corruption which may as well be completely impossible. Let's put it that way: if NBT corruption to the point where we can make a notch head is possible, putting any command in a command block is also possible

[@gembai]

@@JKM115 woah, this open infinite possibilities :O

[@TheSRSThunder]

I got this in my recommended randomly and half of this is that far out of my wheelhouse I understood about 40% of what was happening

[@thorium229]

I just saw ElrichMC's new video where he used a setup similar to the 'old' method for getting the bedrock item to get a double chest of bedrock without duping. It seemed to use some parts of falling block technology, but because the video is in Spanish, I didn't understand much of the explanation. Sadly, I couldn't find any other videos explaining this setup... Do you know if there is a video on this or do you (or somebody else) plan to make one?

[@myreneario7216]

The bedrock farming technique is this one: kzbin.info/www/bejne/p6ezXqieeqmSmMU There is currently no tutorial for it specifically.

[@22thomas1]

I really like how you told us not to worry about remembering the wavetech vid with the technical explanations, homie fr

[@transArsonist]

this is the nuclear physics cern of minecraft yall making all whole new elements

[@rochelxz]

Its really satisfying getting illegal blocks Without Creative mode

[@eternal4074]

So glad you finally got this vid out! Awesome stuff!

[@jelledegraaf4039]

1.19 is about to get destroyed now scicraft updated... And I love it

[@J0R1AN]

The absolute limit would be getting a command block with nbt data containing a command. Then you would literally be able to do anything

[@Decommissioned]

That’s not really possible, even if it was they said wouldn’t use it

[@-data]

Don't believe that's possible

[@multirtist7442]

SciCraft 69420: Destroying the entire overworld

[@tnsquidd]

"mumbo jumbo is the best redstoner"

[@MunifTheGreat]

Everything is cool and all. But 6:15 is the best part of the video 🤣

[@in1]

21:36 just a normal day on scicraft

[@zombie.gaming]

Nice, I enjoyed the last video so can't wait to watch this one!

[@Bluebird_YT]

Scicraft 69420: spawning the wither storm in survival minecraft

[@bartoszkola621]

They have done that: kzbin.info/www/bejne/fKTGon1vhpqUY7s

[@RedMan0424_]

its so funny seeing jkm getting mad and cursing at his own mistakes😂

[@Woofus_Poofus]

Amazing, thank you for this occult knowledge into Minecraft

[@asmylia9880]

I don't know what I find funnier - JKM shouting at people who want to do that in later versions, or JKM forgetting to turn off instant fall, lmao

[@ughur3026]

Yo I started watch today and saw your first command block and now new upload let's go

[@XanthumS]

Scicraft 421: Getting a 1.19 item in a 1.12 world

[@yakutforce4986]

hello friend, i just wanted to ask. remember you made a video: "how to find the frame of the portal to the ender world." So, do you happen to have a map of that mechanism? or schematics? I will be grateful if you share)

[@trolle_]

Yo! scicraft video, this is amazing buddy

[@Haaaaaaaa_]

"basically..."

[@4per8]

next time on scicraft: getting a repeating command block with nbt data that makes it do /stop when powered

[@saultheman3665]

Next item on the bucket list: budding amethyst

[@raffaelechinotti5244]

11:40 i have a maybe stupid question, the way you explained this here makes so there HAS to be the wanted block in the chunk, but you have to OBTAIN the wanted block, you don't have it yet, so how does blocks IDs really work here?

[@arkanon8661]

yeah, im also stuck on what he meant by this

[@raffaelechinotti5244]

@@arkanon8661 glad i'm not alone :')

[@Decommissioned]

*Basically* there are multiple different ways that the game stores different blockstates depending on how many there are in a subchunk. So to generate unobtainable blocks, you need the registry palette, which is 256+ blockstates in a chunk, which each block is represented as its ID + metadata as a 13 bit binary number, where there are 9 bits for the ID and 4 for the metadata. Then, using the funny observer line you can cause a race condition where 2 threads try to change bits at the same time, making a new block. Then you can change the palette to the hashmap palette (I think you use this one I don't remember), which is 256 or less blockstates, which then you can do the falling block swap. This is an oversimplification, but its the general idea.

[@destroyerag7800]

Sci Craft 999: BECOMING GOD

[@Pistaa13]

In real life

[@Earthcomputer]

Yo, what was my metadata again?

[@reivax5335]

🤔😆

[@thenormalminecrafter2720]

Also could you use cubicmetre's Orbital Strike Cannon for end gateway placement?

[@jordam200]

SciCraft has discovered fusion in minecraft

[@myreneario7216]

Are you portugese? You sound portugese! And can you please do a block by block tutorial? I want to do this on a 1.19 paper anarchy server.

[@ravibulwa7047]

Nie ruszaj myszką!

[@marysartr]

😭😭😭💀💀

[@ztirom2267]

A year ago this was thought to be impossible, now we are here.

[@seebeedee]

Three years ago I had working command blocks in an achievements world. These cb's don't even work!

[@maxmustermann5590]

5:41 Fell of my chair laughing ahahaha

[@nosidenoside2458]

Is it possible to get specific players's heads in survival?

[@eighties-u3q]

no because they have special uuid tags

[@quallejellyfish7413]

dis video is the definition of illegal items

[@nigonkee4639]

Screenshots? Im trying to recreate it in my terraria world

[@spicybaguette7706]

15:18 most illegal hotbar ever witnessed in survival minecraft

[@lockskelington314]

This man is gonna make a WitherStorm next!

[@eliteknight2137]

Now you can finally summon wither storm in survival you need to code in into the game beforehand, using redstone of course

[@ocularsurfacewatermelon689]

Hello KJM, I was wondering what mod do you use to get that “speed: m/s” movement speed data at the top left? I am very much in need of a mod like that

[@jx5b]

MiniHud

[@enderger5308]

Does it work in 1.11 though? If so, how different is the setup? Genuinely curious, as observers were added in that version and 1.12 didn’t change much internally (the flattening is what broke it in 1.13, I presume, as numeric IDs seem easier to manipulate than full strings of data through ACE if that’s what’s going on here).

[@enderger5308]

Ah, it’s memory corruption. My mistake, should still be broken by the same thing (corrupting a block ID is far harder with arbitrary memory addresses vs consecutive block ids). I presume if you can corrupt the pointer of the block id string to another block id string, then the exploit could work again if my theory holds).

[@Decommissioned]

Should work from 1.8-1.12. Obviously some setups aren't possible because of less blocks but I think falling nether portal can be done in 1.8.

[@Yeetus_amongus]

incomprehensible, have a nice day

[@Ogorix]

Younger brother: you can’t place water in the nether Me:

[@Lightningsquid]

Underrated video! i subscribed

[@viperforty8450]

Next video: programming command block to type out /gamemode c jkm by using a book and universe-tearing mechanism

[@spanishSpaniard]

One question the block corruption set up could produce other tipe of spawners? Eg zombie spawner?

[@KassaiBenedek]

No

[@ovencake523]

it's probably possible if they can change the skull data they can probably change spawner data hmm and spawners can technically spawn anything... like other falling blocks. before command blocks were a thing most creations were done with manipulating spawners in MCEdit

[@KassaiBenedek]

No that is not how it works

[@agustinrubel1280]

@@ovencake523 The mob a spawner spawns is stored in a tile entity.

[@mrapple6120]

Nah ima just watch this for fun yall got technology that i dont even think mojang knows exists

[@bsdjail]

That's crazy how you just got the unobtanium blocks!

[@PotatoOsu]

i love how in the start his fps gradualy gets worse as he walks thru the hallway

[@Nevir202]

12:21 Me: *Sitting in Brazil* Keep your damn silverfish away from me!

[@ncolyer]

ig im not going to bed quite yet

[@TheDuperTrooper]

👀

[@Cat-pv6yx]

Most normal day in scicraft be like

[@cbruxx]

Ok, i've spent nearly 3 hours just trying to find the song at 00:18 i should just finish the damn video...

[@vutrora]

found it, "Infraction x Aim To Head - Falling"

[@SP4CEBAR]

Could the use of cheat-engine achieve silimar results (by modifying the blocks in RAM)?

[@SmokeFactory]

you can do anything in minecraft if you modify files ¯\_(ツ)_/¯

[@HumbleBeing5255]

And I was proud of myself when I remembered how to craft a stone cutter..

[@NStripleseven]

you madlad

[@anand_bhasme]

What is OOM?

[@Monkeylordz88]

What is "OOM" that you refer to at 3:57? I tried looking it up online & on youtube, but nothing came up.

[@Decommissioned]

Out of memory, new version of update suppression in 1.19

[@Louis14056]

Scicraft 580: making a 1million x 1million perimeter

[@windowsmoke]

He’s making the witherstorm

[@orangenal]

Is it possible to get the bundle?

[@coderxgamer]

no

[@aureuix4674]

But can I use it in my singleplayer hardcore 1.19 world???

[@Maeh-Kun]

You can’t get them in the nether so just spawn them in the nether and pop them threw an endportal… yeah I think that is how it is meant to be done lmaooo nice Video btw

[@baemi6146]

Scicraft Final episode: Getting Notch to Ban Us

[@k0mb4t92]

my brain