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We sent a crew halfway around the globe

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to Jönköping, Sweden.

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Why would we do that, you might ask?

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To take a look at the world's fastest internet connection,

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a whopping 1.6 terabits per second at DreamHack 2018.

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To put that kind of speed into context,

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that is fast enough that everyone in St. John's, Newfoundland

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could stream high-definition video at the same time

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and to download PUBG at that full speed

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would take only 1 16th of a second.

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They set this up in part to make sure

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that the over 6,000 people connected to their network

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have a great gaming experience,

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but also because, of course, Mondo bragging rights.

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So let's have a look at the gear and setup involved

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and give a big shout out to ComHem

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for sponsoring this video.

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So how do you get

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1.6 terabits per second?

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You might think that you'd need a massive honking cable

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like the size of my face

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with all of the internet getting crammed through it,

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but in reality, it's way smaller and way smarter.

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This tiny yellow cable right here

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is responsible for the whole shebang.

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It's just a regular, everyday fiber cable,

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but within it, there are eight different wavelengths of light

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each capable of

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200 gigabit per second.

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When the cable enters the transmission system here,

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it is split off using a combination of passive,

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i.e. mirrors and lenses,

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and active signal manipulation

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to split the different wavelengths apart

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into more conventional signals.

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These signals are carried through this larger wire,

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which contains 16 fibers,

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and then they're split apart into individual fibers here.

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From there,

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the signal undergoes another splitting

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and is turned into 100 gig purple fibers

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that then leave the transmission system

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supplied by the ISP ComHem

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and go over to DreamHack's routers.

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In here, the signal is mirrored to allow monitoring,

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and then it gets sent off

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to one of the 23 distribution switches around the floor.

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Now, up until now, the signal has been completely fiber,

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but it has to be turned into a regular old copper connection,

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for the final 20 feet or so.

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So that happens here.

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One gigabit is sent to each of the 260 access switches,

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where individual gamers will plug in their computers

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and receive 100 megabit internet.

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That is, unless they're baller

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and shelled out for the premium package.

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In that case, their switch will get a 10 gig uplink,

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and they will get provisioned

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a full one gigabit connection just for them.

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Finally, those huge PUBG updates,

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can be downloaded quickly.

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So, this is all well and good so far.

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Fast internet, who wouldn't want that?

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But where it really gets crazy

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is in the department of redundancy department.

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Each distribution switch

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has two physical connections to the routers,

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so someone could actually trip over one of the cables

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without anyone losing their internet connection.

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At most, they drop a packet or two.

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And if the DreamHack router

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that is going to all the switches fails,

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the game is over.

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And the game continues.

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See?

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No.

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See the two routers on the ends here?

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They are completely identical.

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Blow either one of them up,

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and the game shall continue.

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And it doesn't even stop there.

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That 1.6 terabit wire.

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It first travels to a data center in Yon-Shaping,

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where it gets split into two 800 gig fibers

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that separately travel to Stockholm.

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So, if you cut one of those wires,

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you get 1.6 terabit,

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because those data centers are also connected together.

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So, you would have to literally blow one of them up

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to drop this to a piddly 800 gigabit.

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But of course, all of those things could go wrong,

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or someone could just cut the main cable here.

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Do it.

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Do it. I dare you.

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And even if that happened,

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just 45 milliseconds later,

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the routers will have failed over,

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to the four 10 gig fiber cables,

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which also take two different routes

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to the main data center in Stockholm,

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making it basically impossible

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to fully take the internet away from this LAN party.

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All right, so now we've got internet into all the switches,

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but every single one of the routers and switches

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needs to be configured.

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And at this scale,

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manually configurating each switch would take an eternity.

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And even things you wouldn't normally think about,

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like running out of IP addresses become big issues.

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So to address this,

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oh, I'm sorry.

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All of the switches are dynamically configured

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via an automated deployment system based on DHCP,

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TFTP and Python,

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so that it's basically plug and play.

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They're also using a monitoring software called Prometheus.

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So if a switch goes down,

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they don't just know that one has stopped working,

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they also know it's physical location in the building.

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They also know it's physical location in the building.

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And they're using a front end called Grafana

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that creates graphs for tracking things like

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total hours played in each game,

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what domains are used the most,

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and the total network usage at any moment.

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So we figured out how they solved the problem

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of getting internet to the 6,000 or so participants.

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But every computer, monitor and RGB strip

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has to be powered as well.

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And all of those combined draw a massive one megawatt

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or one megawatt.

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A million watts of power.

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And the fancy stages that showcase the best gamers

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and musical performances,

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well, they gobble up another megawatt.

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So some pretty serious gear has to be deployed

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to make sure that someone with a 7980XE or a Threadripper

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doesn't hit Cinebench and make the whole place go dark.

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So three 10 kilovolt lines come in

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and get transformed down to 400 volts and about 1,500 amps.

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Then they enter this room right here

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or one of the other nine just like it.

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From here, it is split up into 400 volt, 400 amp lines

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that run to the various sub-central distribution centers

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or 400 volt rails along the ceiling

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where it gets fed into a box that can handle 63 amps.

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These power distribution boxes

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were actually custom made for DreamHack.

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And the older ones can handle two rows of lanterns

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while the new ones, largely due to computers

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and especially monitors, can handle two rows of lanterns.

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And the older ones, largely due to computers

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getting more energy efficient since the event started,

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can handle three rows.

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These are also secured with RCD

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so that if leaking current is detected,

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let's say someone puts their finger in a socket

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or spills Coke on a power bar,

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the power is immediately cut to the group

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so no one gets hurt

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and a maximum of only eight computers will go down.

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But what happens if you aren't fortunate enough

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to make it to Sweden for the LAN,

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but you still wanna watch the eSports

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that are all going on at the same time?

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That's where DreamHack's very smart

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and also kind of jammed

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and yank completely custom broadcasting server

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comes into play.

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So instead of running a traditional broadcasting server

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and mixer combination,

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all of the video and audio streams go into a video hub,

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a video mixer and several rendering servers

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that are behind me right now.

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And then everything can be switched

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and configured over the network.

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This allows for some really cool things

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like being able to switch inputs from basically anywhere

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so that they can be manipulated

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from the dedicated mixers here

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or by Raspberry Pis placed wherever they're needed.

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There's also an in-game observing team

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that has access to a delayed feed,

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allowing them to show important moments

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from several angles instant replay style.

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Since they've built a custom solution using Casper CG,

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they're able to do other cool integrations

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using data from the game engine as well

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so they can create graphics

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that show things like player health,

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what weapon they're using or the timer on the bomb.

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These additionally are hooked up to the stage,

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so the lights, screens and even the pyrotechnics

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like for when the bomb goes off

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are all automagically synced.

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So it's been really cool to see all of the custom work

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that goes into making a massive event like this tick

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from the fastest internet connection in the world

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to smaller things like the ability to easily mute a host.

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And I hope you guys have enjoyed it.

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So huge thanks to you for watching

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and a massive shout out to ComHem

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for allowing us to be here to cover it.

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So if you guys disliked this video,

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you can hit that button, but if you liked it,

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hit like, get subscribed

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or maybe consider checking out where to buy the stuff,

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a 10 dream hack in the future

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at the link in the video description.

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Also down there is our merch store

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which has cool shirts like this one

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and our community forum, which you should totally join.