The Internet Runs on Magic 

A TCP packet walks into a bar and says, "I'd like a beer." The bartender replies, "You want a beer?" The TCP packet replies, "Yes, I'd like a beer."

As someone who works in IT, this is one of the best explainers I've seen on how the Internet works. Well done!

Well, i'm not expecting this. Glad you're back.

Nice overview! As someone who has been taught these concepts more times than I could count, I can say that this gets the point across well enough, while still being interesting and nice to watch, I like

I'm sold, where do I get myself one of those "internets"?

10 months later.... _The Science Elf uploads a new video once again._

damn it's been almost a year and you've finally came back. welcome to your empire, sir.

This dude had a pretty banger channel and just dipped. I wonder where he went, I kinda miss his vids

i just got the idea to revisit this guy and then i realise 3 hours ago he did a big comeback and before that he hasnt posted since 8 months

I'm glad that someone finally used "Cream of the Earth"

dude, we need you back. RIGHT NOW!

I can't believe you're back! I was so worried, you're one of my favorite youtubers!

OH MY GOD YOU’RE STILL ALIVE

And when the world needed him the most, *HE DISAPEARED"

I've never liked a video so faster my entire life. I love you science elf

Seriously impressed how well you explained this. Loved the animation!

This is just the right mix between informational and artsy - I love it!

Man it's been a while, glad to see you're back Love your use of Cream of the Earth again "Everything should just work" emphasis on should

I was literally googling "what happened to The Science Elf" today lmao

I literally just checked your channel last night wondering if you were dead or quit or something. Good to have you back

See you again in 10 months when The Science Elf uploads

you're still alive!

Intro: oh! The Video looks a lot bettet than it used to be on this channel. Few secs later: ahh yes, my favorite shitty mic is back!!

He's back With _microphone he started channel with_ 2.0

I know this blocked me for a while during my education, for those that are wondering what is meant by "layer": When solving big problems, it's a good idea to break it down into smaller problems, right? So, you could say you're breaking the down the monolithic challenge into "blocks". This helps engineers visualize and even make diagrams for every challenge they have to face. A "layer" is type of "block" where the direct interaction is largely limited to the other directly above or bellow it. For example: If you had layers A, B and C. A cannot communicate with C without going through B. It's important to note that blocks can be broken down further or packed together. It's up to the analyst to break it down as much as they (and their colleagues) need to and no further. So, it's no suprise that a layer addresses multiple problems but what the name implies is not lost. The blocks inside of (composing) the layer are limited to interact with the ones within the same layer or the others from the layers directly above and bellow it. Since layers can be composed of other blocks, it's no surprise that you can find "sublayers" (layers within layers). Anw... "layers" and "blocks" (aka packages, modules and/or objects) are essential components of the jargon we use to visually represent problems and solutions. If it still isn't clear to you, don't feel too bad. It takes practice for the author to get a "feel" for how his ideas should be divided up into words, sentences, paragraphs and so on. There's no "perfect" way to do this. That's why I like to think of problem solving as an art sometimes.

Y'all he's just waiting for 65,536 views

Just recently discovered your channel, your videos have been super helpful for getting through my work day. So excited to see you upload again! Loved the video.

This was one of the best explanation of how the internet works.

The last time I considered this channel dead, this video was released. So I'm hesitant to declare it dead this time. Let's hope for a pleasant surprise.

Ah yes, 127.69.4.20. My favorite loopback address! :P

Please come back dude, we miss you.

This video was great. We appreciate the comeback

Hey, welcome back to RU-vid! We’ve missed you.

why don't you post anymore? I love your content and i dearly want you to post again. :(

12:25/12:27 - hmmm, do I sense an oblique reference to RFC 1606? :) Nice summary. And it's somehow kinda cool to me that you went with the 4-layer model, rather than the 7-layer OSI model (or its extension to 9 layers, though that's fun, too. ;) )... though a passing reference to the idea that there exist other models for thinking about these layers might have been useful to some. Anyway, good stuff.

ah, the TCP/IP model. Gotta love that Transmission Control Protocol and Internet Protocol. Here I thought you'd talk about how Internet Protocol works internally, but I guess not.

Glad to have you back!

There are no words in the English language that can explain how happy I am to see this video. I honestly thought you were dead. I was so worried. I don't know what's going on in your personal life I'm just happy that you're back. 2020 sucks but science elf is back. And that's awesome.

good to see ya back man

Dude really cool, I've always curious about the "layers" but I couldn't never understand them properly. Now i have a clearer understanding of how it works. Nice video!

That little Mac Color Classic is a true thing of beauty. I still think about buying one every now and again. When they first came out I think it was the first time I had tech lust.

Great to see you're back!

Wow, this is the best video yet from you. Keep up the good work!

He is back! Holy shit!

Happy to see you're back

Good to see you back!

He left as fast as he returned

Nice to watch a deep, but articulate delivery of a subject~

Welcome back!

Back due to popular demand! jokes aside, welcome back!

"It's *_Magic_* Joel, it's *_Magic_* ." - Vargskelethor Joel

HE RETURNS

Glad to see ya back

I could tell you a joke about TCP.... But I'd have to keep repeating it until you got it.

Glad you're back, I missed you!

YAAAAAAAASSSSS The legend is back at it making quality vids as usual!

He's gone again ! What happened to him?😕

Its been more than a year now

And he's back... and the video is high quality. Did you spend 10 months working on it? Also the mic ruins the video since its medium quality and you can feel the difference in quality quickly. I also think ports as rooms and when you portforward a port it's rooms door is being opened and then packets can come in and out.

What happened to science elf

Was looking through your channel a few days ago, you have uploaded 10 months ago.

Awesome video man!! great presentation :)

Welcome back, friend. We missed you.

He's back yay!

4:32 "For some packages, they don't even need roads." Alright, McFly. And I don't mean to sound rude, but we all laughed at Technoblade's upload schedule. Glad to see the king has returned.

wow this is a big step up from your last video. great job!

OMG HE'S BACK!

25565... you just gave me vietnam flashbacks my guy

Actually amazing m8, worth the wait

Where has the elf gone?

Do we have to wait another 5 months for the next video?

Great video!

YOU'RE BACK OMG

Love your videos man!

welcome back, great vid as usual 😌😌👍👍

He returns!

This video was extremely good, thanks for making it

He returns...

Whoop! Back again!

So apparently The Science Elf is still alive

5:27 nice

Welcome back dude! It's been a while. Stay healthy 🇵🇭

Yo bro did you forget the password or what

HES ALIVE!!!!!

its magic joel its magic

By the way how do the layers assume stuff about the layers? Expect certain data to be sent?

Wow! He's back!!

HE HAS RETURNED!!!

5:19 *n i c e*

I do wonder if these types of vids, simplistic explanation are gonna become the norm

It's magic Joel, it's magic.

Is there really four layers to the OSI model nowadays??? I graduated high school with them CCNA certification and although I don't still have my certification I'm smart enough to understand a lot of things about the internet and the web.

He's back. 🙏🏻

He is back!

I've missed these videos in my feed.

THE KING RETURNS!! WE MISSED YOU!!

he's back

we miss you :(

How tf did he load it on a Mac that old?

He's alive!