The Computer Science Iceberg Explained (Part 1)

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  • Опубліковано 31 гру 2024

КОМЕНТАРІ • 996

  • @pauldirac5069
    @pauldirac5069 2 роки тому +1672

    I’m currently studying compilers and language design, I make programming languages basically, and your explanation of high-level languages to assembly was very good. It was simple and easy to understand, I’m definitely yoinking it.

    • @Dylan-uv9nu
      @Dylan-uv9nu 2 роки тому +22

      Gonna do that module this semester

    • @DaBulgarianQueen
      @DaBulgarianQueen 2 роки тому +11

      It will be cool to connect and share info on the topics :) what platforms if any do you use to share info besides UA-cam ? I am new to the cs so I will love to learn from anyone in this field before me :)

    • @Jtak-qu5hk
      @Jtak-qu5hk 2 роки тому +7

      I got irrationally angry at how he called the binary and assembly different languages. They actually are, i was thinking of machine code when i commented

    • @zesanurrahman6778
      @zesanurrahman6778 2 роки тому

      Bro I need to make cpu iceberg video

    • @loveiswaytruthlife995
      @loveiswaytruthlife995 2 роки тому +2

      Would assembly Language be a core of creating our own language, like my own language in computer science

  • @kiranreddy4046
    @kiranreddy4046 2 роки тому +427

    I wish more people appreciate the insane amount of effort went into making this video. The writing, scripting, animating, editing, voicing. Absolutely brilliant

  • @harukiva
    @harukiva 2 роки тому +1017

    Your videos are insane, the amount of effort that goes into compiling all this information, making it digestible for the average viewer and ALSO having it be interesting? On top of that the insane amount of editing and graphic work to make it coherent and fun to watch? You're going places man, love it.

    • @moioyoyo848
      @moioyoyo848 2 роки тому +4

      No this video is pretty ignorant

    • @bri-et1sd
      @bri-et1sd 2 роки тому +2

      @@moioyoyo848 care to explain how it’s ignorant?

    • @moioyoyo848
      @moioyoyo848 2 роки тому +1

      @@bri-et1sd he ignored most importants parts of pc and he doesnt know enough

    • @SilverTheFlame
      @SilverTheFlame 2 роки тому +15

      @@moioyoyo848 bad day?
      He clearly knows what he’s talking about (or at least has done a lot of research). And obviously this isn’t meant to be a complete guide to comprehending computers in the 21st century lmao...

    • @moioyoyo848
      @moioyoyo848 2 роки тому +2

      @@SilverTheFlame does your parents know you are not on youtube kids?

  • @sjeff26
    @sjeff26 2 роки тому +228

    As a CS major, this is amazing work. I particularly liked the part about graphics rendering. The explanations are not only consistently clear; they are concise, which is a non-trivial feat.

    • @snorman1911
      @snorman1911 2 роки тому +5

      Hey everyone, CS major over here!

    • @soksamnang2150
      @soksamnang2150 2 роки тому +9

      @@snorman1911 Hey CS major, everyone over here!

    • @pelvismen5510
      @pelvismen5510 2 роки тому

      @@soksamnang2150 lmao ur pfp. No smiley :(

    • @snk-js
      @snk-js 2 роки тому +1

      I'm do not a CS but I'm software engineer :(

    • @noobiamyes4853
      @noobiamyes4853 10 місяців тому

      Counter strike major is crazy

  • @cutsign
    @cutsign Рік тому +47

    Not publishing part 2 is A CRIME.

    • @Danilio.
      @Danilio. 11 місяців тому +5

      Ikr, it's almost been 2 years

  • @phoenixfront
    @phoenixfront 2 роки тому +138

    Finally remembered his password! (All jokes aside I understand these videos take ages to make and research and I think I speak on behalf of all your subscribers when I say we are glad you are back!)

  • @LittleSpeedyCat
    @LittleSpeedyCat 2 роки тому +46

    As a computer science student, I love the fact that there's no clickbait, you know your topic and explain it very clearly. You earned yourself a new subscriber

  • @pixelbogpixxelbog2090
    @pixelbogpixxelbog2090 2 роки тому +74

    This video was so good I even liked it with my second account.
    For real... animation, humor, non-boringness, graphics, high quality and knowledge. This video has it all. Rlly well done!

  • @missingsemi
    @missingsemi 2 роки тому +58

    10:38 just an extra note about using SHA for passwords: while it can be used, its often not the best choice. SHA was designed to be fast to compute making it very useful for older hardware and things like signatures, but you typically want the exact opposite for passwords. For a password hashing algorithm, you want it as slow as possible until it starts annoying users. That way, an attacker will be able to calculate fewer hashes per second while brute forcing. As of right now, the usual choices for password hashing are bcrypt or argon2id, both of which were designed to be slow.

    • @itsb680
      @itsb680 2 роки тому +4

      This information was insanely valuable, and delivered at exactly the right time in my dev-life.
      Thanks a heap.

    • @SahilP2648
      @SahilP2648 2 роки тому

      I don't know what you are talking about (and I am a full-time developer btw). Hashing algorithms are designed to be computationally inexpensive one way and super computationally expensive the other way. Meaning if you calculate the hash of say a document, and then you change a single bit anywhere in the document, then compare both the hashes, they are going to be vastly different. That means finding two documents with the exact same hash code is statistically impossible. With SHA-256 you get a possible 2^256 number of hashes to describe a file. So, if you just have a hash code and you want to find out the original contents of the file, it is impossible to do so because there is not only not enough information but also the total possibility is so high. That's about it. That's why hash codes are used to verify the integrity of files in servers and for making sure that the password is verified. Servers almost always store salted hash codes to verify, never the original password. Whatever other hash functions you described might be 'designed to be slow' or whatever, but SHA-256 (and SHA-512) is the industry standard and there is no reason why you need to use some other function/algorithm. If you are using hashing algorithms which are slower but offer nothing in return, you probably don't even know why hash codes are being used in the first place.

    • @missingsemi
      @missingsemi 2 роки тому +6

      @@SahilP2648 you are correct that SHA is extremely fast to compute and infeasible to reverse. It is for this exact reason that attackers make no attempt to reverse hashes. Instead, they will often use rainbow tables or they will outright brute force inputs until they find a matching output. This is why slow algorithms are typically considered better for password hashing. An attacker can not compute anywhere near as many hashes in the same amount of time, meaning it will take them significantly longer to find an input that matches a hash in the database.
      As for industry standards, slow algorithms like bcrypt have been the standard choice for years now. For example, websites like dropbox, facebook, github, reddit, twitter, and yahoo are all using slow hashing algorithms like bcrypt and scrypt. Additionally, the most of these algorithms salt by default and have adjustable work factors so you can continue to make your hashes take a long time even as computational power increases.
      Here's some good resources:
      Key stretching - en.m.wikipedia.org/wiki/Key_stretching
      Owasp - cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html
      List of which hashing algorithms specific websites use: pulse.michalspacek.cz/passwords/storages

  • @richtigmann1
    @richtigmann1 2 роки тому +15

    Taking computer science, I am amazed at how many computer science concepts you are able to fit all in so little time, yet explain with so much accuracy so concisely! It's really a shame it only has 9k views

  • @100dcx
    @100dcx 2 роки тому +15

    For people passionate for computer science, this video is absolutely amazing, I didnt even feel the 24 minutes passing, everything was high quality and you made it interesting, I can't wait for part two! :D

  • @nKacey
    @nKacey Рік тому +1

    probably the most high quality iceberg videos ive watched. actually, probably one of the only ones that I have actually sat down and "watched" lol incredible work, and congrats on 100K!

  • @squeakypickles
    @squeakypickles 2 роки тому +57

    Even knowing most of this information, the way you simplify it and make it so clear is really impressive. This is super well made and entertaining 👍

  • @aadityamore5645
    @aadityamore5645 2 роки тому +1

    11:50 this is where i knew this channel was for me ........ you just gained a suscriber right there

  • @hunterzilla9385
    @hunterzilla9385 2 роки тому +10

    its insane that you have 3 videos and are doing this well that just proves that your content is amazing keep it up

  • @melarbi
    @melarbi 2 роки тому +53

    currently studying computer engineering- this video was incredible man keep up the great work, you have a gift of explaining concepts so well, even the most obscure technical ones professors’ spend a whole semester’s worth of time on and can’t do it well. Hats off to u man. If this is your lane, i would love to see videos going in depth on these concepts down the road.

  • @psychicpenguin2850
    @psychicpenguin2850 2 роки тому +8

    Man this was really great! Can't wait for part 2

  • @Synapse203
    @Synapse203 2 роки тому +7

    Wow ! I clicked on this video because I just wanted some background noise to keep me distracted, most iceberg videos are "meh alright I guess" but as soon as it started I realized this wasn't what I was expecting. The work put into the video is impressive (both in the presentation and information), that's some high quality content and you've definitely won a subscriber

  • @AdamBrusselback
    @AdamBrusselback 2 роки тому +8

    As others have said, this video is seriously impressive. Just amazed that I didn't notice any technical errors when you packed that much info into it. Congrats on the amazing work you've done with this these videos. Loved the humor!

  • @idedary
    @idedary 2 роки тому +71

    This topics attracts very specific kind of people, so i have already known most of what you said, but I'm looking forward to part 2 where I can learn something new on a silver plate presented to me.

  • @vladusa
    @vladusa 2 роки тому +95

    For the randomness section: we don't use time anymore. We use CPU activity or noise (entropy, patterns, etc), as well as modulo arithmetic and state transition functions.

    • @TheBeanhacker
      @TheBeanhacker 2 роки тому +10

      Or if you are Cloudflare, a wall full of lava lamps 🤷🏻‍♂️🤣

    • @bierba
      @bierba 2 роки тому +3

      @@TheBeanhacker Beat me by 40 minutes, just wanted to comment this😂

    • @maskettaman1488
      @maskettaman1488 2 роки тому

      That's incorrect. Could you point me towards a single standard library that does any of that to seed its randomness?

  • @jimbojimbo3801
    @jimbojimbo3801 2 роки тому +1

    These videos deserve so many more views! Hope the algorithm catches on

  • @pace_18
    @pace_18 2 роки тому +9

    I just love this. I thought I would be really bored but you put it in a really fun and understanding way. This is cool

  • @lazyybunnyy
    @lazyybunnyy 2 роки тому +2

    As many people have mentioned already; this video was fantastic! From the style of presenting information, voice, and keeping the audience interested. I really enjoyed watching this despite me not knowing much about computers.

  • @SneckoBoi
    @SneckoBoi 2 роки тому +5

    I was shocked when I saw that you only had 3 videos. Keep it coming, your videos are amazing.

  • @DrakyHRT
    @DrakyHRT 2 роки тому

    Dude, your videos are SO fucking GOOOOD, i actually can't believe you have "only" 60k subs, the ammount of work you put into these is clearly insane, thanks a lot for the video, and have a nice day.

  • @BongoRGB
    @BongoRGB 2 роки тому +10

    3:08 Years of academy training prepared me well.

  • @shreyanjoshi3622
    @shreyanjoshi3622 2 роки тому

    Oh my god, how did I not come across this before. You are my favourite UA-camr from now on, man. This was so good

  • @SilverTheFlame
    @SilverTheFlame 2 роки тому +9

    Wow, what a fantastic video! I’ve taken many computer science classes and so I’ve learned a little about many of these topics, but the way you presented the information is just phenomenal. A great balance of educational and intriguing :) thank you!

  • @nnlp5854
    @nnlp5854 2 роки тому +1

    You are giving the real info here, great work

  • @Anaoa_Official
    @Anaoa_Official 2 роки тому +3

    Yep. You really are underrated, the editing and script writing and explanations are insanely clear and amazing
    I DIDN'T EVEN KNOW THEY USED GRADIENCE FOR 3D OBJECTS LIKE CIRCLES
    *I can't wait for part 2*

  • @nezby3945
    @nezby3945 2 роки тому +1

    Bro I needed to find a channel like this! Can’t wait for part 2🗿

  • @juanjozo1000
    @juanjozo1000 2 роки тому +5

    This video is truly amazing. Didn't think it was possible for anybody to explain so many concepts with such a clarity and short amount of time, while keeping it really interesting. Keep up the good work man 💪🏻

  • @tonaxysam
    @tonaxysam 2 роки тому

    First video that got recommended to me from this channel. First middle-long video that I saw complete from recommendations. New subscriber earned
    Very good content

  • @eryntodd
    @eryntodd 2 роки тому +3

    Studying computer science too. This is the first, actually intriguing, video I’ve watched about these topics that aren’t putting me to sleep. I felt like I just gained so much more info on the back-end that I’ve never learned before. Especially the cookies part & the history of databases, omg.

  • @B0nerM0aner
    @B0nerM0aner Рік тому

    THANK YOU FOR AN ACTUAL EXPLANATION OF SHA!! jeez, i looked at a lot of sites and never found a satisfying answer. Also really like the video, keep em up!

  • @AwokenEntertainment
    @AwokenEntertainment 2 роки тому +27

    crazy amount of info explained here..
    We use these almost every day yet most people have no idea how they work

  • @BigOrangeMan
    @BigOrangeMan 2 роки тому +1

    I subbed you before passing 5min in vidoe, your presentation skills are excellent

  • @m4rt_
    @m4rt_ 2 роки тому +3

    2:55 Technically all a cookie is, is just a name, and a value, that the website can check, this can for example be a token that proves you are logged in so you don't have to log in all the time, or it can be what is in your shopping cart, the value is just text, but it can be for example formatted as something known as JSON which is a way of putting information in one long string of text that is easy for JavaScript to understand, and the name is like a label for that piece of data.

  • @micklethenickel
    @micklethenickel 2 роки тому

    This is one of the best explanation videos I've ever seen on this website. Absolutely goated

  • @DomskiPlays
    @DomskiPlays 2 роки тому +4

    Even though I already knew almost everything here, you made it very interesting to watch and I followed along until the end! See you at a million :)

  • @kmikc909
    @kmikc909 2 роки тому +2

    This is really cool, I think it is a good way to share information with people that are not part of the computer science world so that the get a glimpse of whats out there, really looking forwards for part 2! And which topics you selected for that!

  • @KILOPOWER
    @KILOPOWER 2 роки тому +5

    Your motion graphics are top notch! As an animator and editor myself I know that this video probably took you hundreds of hours to make, amazing production quality for such a small channel, you need more viewes and subscribers

  • @jojodasjojo
    @jojodasjojo 2 роки тому

    I thought at first that I had found a channel that had been around for a long time and wanted to go to part 2. Then I noticed that this channel only has 3 videos. Subscription earned!

  • @Daniel-to3yh
    @Daniel-to3yh 2 роки тому +6

    As a computer science student I enjoyed a lot this video, top quality content!

  • @bagonbee
    @bagonbee 2 роки тому +1

    i love this channel so informative and the edit is 10/10

  • @Regenperf
    @Regenperf 2 роки тому +11

    I watched this with the assumption that your channel has multiple millions of subscribers. The insane amount of research and simplification alone is palpable. Add onto it, being able to keep it interesting and fun to watch?!? Dude… congratulations on the successes you will have in the future 🙏🏽🙏🏽
    Looking forward to more from you!!

  • @unsymphatisch
    @unsymphatisch 2 роки тому +1

    Just found your channel like 3 days ago and absolutely love it

  • @pvic6959
    @pvic6959 2 роки тому +3

    As a computer science major and how software engineer, this will be really fun!! Thank you!

  • @mcpdx123
    @mcpdx123 2 роки тому +1

    Man your videos are super informative the work you put in to these videos is insane. Much appreciated! By the way the sarcasm plays in perfectly 👌🏼

  • @splits8999
    @splits8999 2 роки тому +6

    love the way u adapted stuff to fit the computer vibe and very interesting love it dont regret my sub thank for this content

  • @p_deges
    @p_deges Рік тому +1

    Been checking in like once a month to see if the second part has dropped yet, are you still working on it? Cant wait

  • @legendofnat5477
    @legendofnat5477 2 роки тому +4

    12:25 i think you meant to say either « the beginning of the 19th century » or « the end of the 18th century ». Great video tho your content is insanely good and the production is perfect. Great balance between education and entertainment :)

  • @farhan44able
    @farhan44able 2 роки тому +1

    One of the greatest videos of Computer Science Intros. It was entertaining and fascinating as well.

  • @Bogo0112
    @Bogo0112 2 роки тому +18

    As a computer scientist I can say almost everything in this video is accurate. At least for very basic levels.

  • @alvinpoly2781
    @alvinpoly2781 2 роки тому +1

    Amazing Video! Had me hooked on to it till the very end.

  • @МихаилИльин-л7о
    @МихаилИльин-л7о 2 роки тому +3

    I mean, that iceberg is pretty good for average computer user and you're good at explaining complex things in simple way, but I think CS iceberg explanation needs 2nd part, there's certainly enough cool things to tell about: ternary computer architectures, quantum computers, organic neural networks, etc. Thanks for your work.

  • @henryquillin3733
    @henryquillin3733 2 роки тому

    This is the best piece of comtent I’ve seen on UA-cam in a long time

  • @Raudnen
    @Raudnen 2 роки тому +3

    Yess, finally another video from the creator who has 3 videos but whose production quality is higher than the one of the average netflix show

  • @dracenmarx
    @dracenmarx 2 роки тому +1

    Your video is very good. It’s very nice that your explanations are still correct after you simplified the topics. Many people trying to simplify things often make them slightly wrong (e.g. saying that hashing is encrypting), which was not the case in your video.

  • @Danielle_1234
    @Danielle_1234 2 роки тому +6

    For the uninformed, IT or information technology is the study of information (ie networks, web pages, servers) and technology (ie computers, computer hardware, and similar). Almost everything in this video is the study of IT.
    CS, on the other hand, is the study of the organization and movement of data. So data types at the end of the video is the most 101 CS topic there is, despite being at seemingly the bottom of the IT iceberg. CS studies how to organize and move data in such a way to speed programs up. This way you don't have long loading screens and you have a higher frame rate when playing a video game. CS does bridge into hardware programming, like assembly language, but sadly it's rarely taught these days and tends to more and more fall into the domain of IT these days. CS also studies ways to think about problems. Eg if you have a overwhelmingly large problem you can break that problem into a handful of smaller easy to solve problems, solve them, then combine them. The combined solution solves the larger problem. This topic in CS is the study of algorithms. At the end of the day CS studies data structures and algorithms.

    • @SETHthegodofchaos
      @SETHthegodofchaos 2 роки тому

      Hm, i am not sure thats correct.
      Even Wikipedia has CS as a broad definition: "Computer science is the study of computation, automation, and information. Computer science spans theoretical disciplines (such as algorithms, theory of computation, and information theory) to practical disciplines (including the design and implementation of hardware and software)."
      Although it also quickly states that "Algorithms and data structures are central to computer science."
      So yes, while in an academic sense, your definition is the commonly used one. But I guess it also depends on the university. Some do offer more specialized fields, like more hardware near programming, medicine or game development.

  • @cosmic_417
    @cosmic_417 2 роки тому +1

    This is.. too good
    Keep up the good work bro

  • @roardinoson7
    @roardinoson7 2 роки тому +4

    Although I don't work in IT or computer science, I found this video super interesting! It was well-illustrated and digestible for the average person, so thanks!

  • @manuelnovella39
    @manuelnovella39 2 роки тому

    Please, keep it up! Quality content, so welcome!

  • @im_byzd
    @im_byzd 2 роки тому +3

    Where is part 2

  • @keii864
    @keii864 2 роки тому

    This vid deserves more credit it’s so wel edited and so informative with info I don’t understand but it’s still great

  • @JustaMohammedx
    @JustaMohammedx 2 роки тому +9

    Quabl is one of the best channels to explain the depths of the things around us
    So let's say if a random person was sent to the past what is he wouldn't make such difference to the discovery of lots of things like we don't know how to make a clock or a fridge
    Point is this kind of information is something quite better to know

  • @dimmor2496
    @dimmor2496 2 роки тому

    I definitely love your work, one of the best channels on UA-cam, i can't express my self enough on how much I like your videos, i have seen them multiple times and i laugh again and again... Thanks for your work!

  • @1chapo1
    @1chapo1 2 роки тому +4

    When the world needed him most, he came back

  • @illusive_agent
    @illusive_agent 2 роки тому

    Best channel for the amount of videos it has out. This man is the pound for pound number 1

  • @ninjaboy3232
    @ninjaboy3232 2 роки тому

    Most underrated video of the month, this was amazing and deserves more views

  • @shamrock136
    @shamrock136 2 роки тому

    Don’t even apologize for taking so long you it probably took so long to edit and find the information. Keep doing what your doing because you are giving us a bigger brain, can’t wait for part 2!!!

  • @Xoplex
    @Xoplex 2 роки тому +1

    Incredibly informative, I'm excited about your next video!

  • @isaacwerner9057
    @isaacwerner9057 2 роки тому +1

    Software development student right here! Love your explanations of each entry! Currently finished with my HTML 5 and CSS course. Excellent job man, keep it up!

  • @satepestage3599
    @satepestage3599 2 роки тому

    As a CS student - your content is so good, the music, the info, it's like watching Netflix but you actually learn sh^t.

  • @mwicken92
    @mwicken92 2 роки тому +2

    Dude this is really good stuff. I've been working in software development for 20 yrs and I like this video. Your doing really good my man!

  • @alexm.5537
    @alexm.5537 2 роки тому +1

    By far one of the best channels on UA-cam.

  • @TheBroG4mer
    @TheBroG4mer 2 роки тому

    What an uderrated video, hope you get the attention you deserve here on youtube. Keep it up with those high quality videos!

  • @TheOriginalDeaf
    @TheOriginalDeaf 2 роки тому

    I really want you to make part 2
    It is amazing, don't stop
    This is entertainment at it's peak

  • @sophiacristina
    @sophiacristina Рік тому

    13:44 - And that is why if you open your HD it is basically ruined, because any tiny particle is enough to scratch your HD. However, if the needle is stuck and you don't mind to lose the HD, but want to recover some data, you can mess up with the needle so it runs again, you can try to recover the most data you want and then say goodbye to the HD.

  • @iffathRazaChowdhury
    @iffathRazaChowdhury 2 роки тому

    Smoothest explanation i've ever seen.. Great work man.

  • @fffgeraldy
    @fffgeraldy 2 роки тому

    Subscribed off the strength, keep ‘em coming Maine, didn’t know I needed this 🔊

  • @ardentlyearning9195
    @ardentlyearning9195 2 роки тому

    One of the best videos I have ever seen, great work

  • @jdiluigi
    @jdiluigi 2 роки тому

    So glad I had clicked the notification bell after watching the last video.
    So happy to see another video.

  • @carlosmenjivar4504
    @carlosmenjivar4504 2 роки тому

    Bro, this video is awesome!! i did not expect the sha explanation LOL, i really loved it.
    I hope the second part

  • @bringthexo7out
    @bringthexo7out 2 роки тому +1

    The amount of effort is amazing.

  • @SixSlikRix
    @SixSlikRix 2 роки тому +1

    omg part 2 pls!? :o
    Greatest. Video. Ever.

  • @joshuaolian1245
    @joshuaolian1245 2 роки тому

    this is such an incredibly high quality video. the animation, jokes, and narration make it such a pleasure to consume.
    would absolutely love a second

  • @Husstavo2844
    @Husstavo2844 2 роки тому

    This is literally perfect timing holy moly!
    YOU ARE A BEAST!!!
    btw can we just applaud for just how good the editing is ?!! truly fantastic

  • @altalio5383
    @altalio5383 2 роки тому

    i love how the video is both really informative and has an insane amount of memes and references

  • @roywastaken
    @roywastaken Рік тому +1

    Just an outstanding video series. Bravo.

  • @thelegend8570
    @thelegend8570 2 роки тому +1

    How the hell do you only have 60k subs, this video is insanely high quality!

  • @sofiarocha9907
    @sofiarocha9907 2 роки тому

    I'm VERY impressed by all the infographics, succinct explanations and witty humor. Great job!

  • @CaseyRayRosenberg
    @CaseyRayRosenberg 2 роки тому

    You are the GOAT with only three videos. Insane.

  • @mpdocs1026
    @mpdocs1026 2 роки тому

    Your humor, editing and explanation is superb. I learned while entertained thanks man

  • @FlustTV
    @FlustTV 2 роки тому +1

    I haven’t even watched this yet, but I liked it because I already know I will like it. Wish you posted more, keep ‘em coming ❤️

  • @5tq6
    @5tq6 2 роки тому

    bro u deserve millions of subs, your videos are amazing i enjoyed every second of it

  • @at_oussama
    @at_oussama 2 роки тому

    i know all of this, but your delivery still made it fun. plus the music is amazing ❤️

  • @corexx
    @corexx 2 роки тому

    underrated channel, you'll get a million for sure!

  • @justins7796
    @justins7796 2 роки тому

    i love when i wake up and find an underrated UA-cam channel that will go big