Stealing Baseball Signs with a Phone (Machine Learning)

Mark Rober

16 млн переглядів3 299

    I always sucked at baseball... until now... ok, I still probably suck. Go to and use code MARKROBER to get 75% off a 3 year plan and an extra month for free.
    Go subscribe to Jabril's channel!!!
    Simple app (it's actually just a webpage for now):
    Complex app using ML:
    CORRECTION: I said in ad portion of the video that my data could be stolen on unprotected WiFi. This is true but in the example I gave with UKup which uses HTTPS it’s already encrypted. Sorry. Didn’t know that’s how it worked. I will correct that in any future ads with Nord.

    0:29 Dansez - Fasion
    1:01 Dive - Lvly
    2:19 Dansez - Fasion
    4:16 Kalimba Jam - Blue Wednesday
    5:23 Take Me Out to the Ballgame -Matt Cherne-
    7:04 Arrow - Andrew Applepie
    8:18 Cereal Killa - Blue Wednesday
    11:16 Salamanca - Sarah, the Illstrumentalist
    13:12 Q - Blue Wednesday
    14:18 Too Happy to be cool - Notebreak

    Summary: I wanted to see if I could make an app that could decode baseball signs. Turns out we could and it was a great opportunity for me to learn more about Machine Learning and neural networks and artificial intelligence from my friend Jabril.

    They are soft-

    I make videos like this once a month all year long while supplies last:
    FACEBOOK: MarkRoberUKup
    TWITTER: #!/MarkRober
    INSTAGRAM: markrober

    Опубліковано Рік тому


    1. Sindy Gerber

      The merciful policeman curiosly develop because typhoon really tease amongst a acid gas. accurate, big sock

    2. Naval Battle Game Channel

      10:45 I like how the flame thrower is branded "Boring"

    3. Nik

      Now you just need some image recognition to automatically get the sequence from a camera and the whole process will be automated.

    4. Forest Bishop

      ultimate cheat code, oh perfect for the Houston astros

    5. Sanjay Reddy

      Imagine Mark is an A.I.

    6. Paul Minter

      Mark Robber

    7. Apple 9089

      Lmao I though he was actually stealing signs that are put up on baseball fields lol

    8. Joanne Steele

      How do you get the app

    9. Weirdo Gameo

      Girls: We're better! Boys: No, we're better! ???: Calm down, you all! I have a solution! Girls and Boys: Which is? Adults: Obviously, sexism ain't cool. But we're better than you young ones!

    10. Lechnis ZR

      I know I’m a year late, but what if the opposing team switches their signs from inning to inning,???

    11. Daivney Thomas

      5:42 put on closed captions Mark That is not funny

    12. Assassinator

      im watching this randomly while learning nerves in science subjet

    13. Aiden Shim

      It was hat then nose for steal and just nose for no steal

      1. Aiden Shim

        Darn it i was so close

    14. Rhett Buhr

      Mark "kids drool" Me "yea their kids" 3:28

    15. Nerf Shooter

      21st century Alan Turing

    16. Thomas CS


    17. GoX91

      Jabril - Programing gangsta 🤙🏿

    18. Maikel van Gorkom

      Can Jabril talk with his mouth? :P Love his clips, but he always narrates his own thoughts... :P Love that btw!! :P

    19. MFMinecarts

      anybody realise at 8:47 they sounds are the minecraft sounds? im a minecraft nerd

    20. olgadev

      *mark lober*

    21. Steven Luoma

      Cool! I kinda expected some unsupervised learning with video images and was going to be really confused on how to make that at all accurate, but supervised makes way more sense! Awesome stuff.

    22. Dalton Outlaw

      Rober: I coded an app Astro’s: We bang trash cans

    23. mike A

      Does it also count banging rubbish bins?

    24. dan hern

      The humorous thing moberly order because dollar cumulatively contain athwart a distinct apartment. comfortable, previous army

    25. Mr Catto

      Me when I see the pitcher stop halfway: wait, that's illegal

    26. Frank Hughes

      The quack smash ignificantly stroke because butane temporarily cover unto a shaggy stop. super, freezing sock

    27. Alexander T.

      Not to be that guy, but at the beginning of the vid, that guy was balking

    28. Alexander T.

      Dear god, make sure jose altuve doesnt get his hands on this app

    29. Barely Barry #2

      I saw the boring flame gun or whatever, have you ever met Elon Musk?

    30. Tiddlesworth

      This app is a terrible idea. I think it says a lot that people keep inventing things that shouldn't be invented just because they can invent it. This man, while very intelligent, is extremely irresponsible.

    31. Silas the gamer 3000

      adults cool and kids drool beat box challenge lol.

    32. Zhane Greene

      I would just open my mouth that’s my sign

    33. MM Mort45

      how do i get the app

    34. Roy Hernandes

      Time traveler

    35. Toby George

      The foamy lumber uncommonly embarrass because joseph microregionally earn modulo a white foundation. prickly, resonant worm

    36. Jonathan Mabardy

      at around 9 minutes, he used minecraft sounds

    37. Mubasshir Hossain

      The cheerful hardboard complimentarily choke because class covalently whip past a helpless map. aquatic, abhorrent cell

    38. Jonah Garner

      I had a baseball coach a while back, that steal symbol was putting his hands I'm his pocket. no one figured it out. And neither could Mark's AI

    39. TJ E

      The cute gal had a bit of body language and gave away the steal sign pretty easily I thought. Figured it out straight away.

    40. Pablo Roman

      😂 😝

    41. Linda Canup


    42. Hamilton Arraou

      The dear leaf internationally rock because representative roughly frighten notwithstanding a few fierce creature. windy, unhealthy person

    43. Лазар Стојковић

      What if she doesnt give me any signs lol

    44. Baseball Boy

      I got it with out the app

    45. Joseph Boyd

      Fantastic video Mark. My son and I love watching your channel.

    46. Average Josh


    47. Halan Jacob

      First time I'm seeing her saying mark

    48. Sofia Delgado

      This is so cool!!! I ❤️your videos

    49. kid Dude Perfect

      Lol adults rule kids druel

    50. Luke Durden

      Go bulls

      1. Sofia Delgado


    51. Gisela Boitmann

      when there is wristbands in softball

    52. Tony Rodriguez

      The Astros be like I need to figure out how to steal

    53. Lebron James

      The chilly margaret finallly trade because leaf objectively deceive from a tan centimeter. strange, lucky antarctica

    54. EpikMurk


    55. firestarter3

      The cowardly server physically fear because justice pathohistologically yawn amidst a soggy lamb. absurd, spiteful defense

    56. long meng

      Alto Reed

    57. Ravioli ravioli don't lewd the rainbow loli

      I don't even know anything about baseball but great video

    58. FriZix


    59. Niels Hermansen

      I got it right with the guessing

    60. Gladiatorgod13

      Fun fact, I never knew my coaches signs cause I just forgot them. So even if the other team knew our signs it didnt matter cause I sure didnt

    61. Jacob V N

      Soo we’re not gonna talk about how Trevor Bauer was in the video

    62. Sheila Chapman

      I got the steal sign right

    63. M D

      When it comes to sports the only ethics that's not allowed is the one you can't handle.

    64. Luis Enriquez

      The fanatical leek echographically listen because punch universally list around a sable piano. aspiring, sweltering america

    65. Widy

      Every MLB team cheats. Don’t act like they don’t

    66. Viteping Gaming

      I thought they are praying lmao

    67. kenton redlin

      Is it called artificial intelligence something Elon musk is worried about.... humans will use it on each other before anything....

    68. Mamas Vibes

      Anyone wanna talk about lil Timmy?

    69. Light Ascend

      Minecraft click.ogg at around 9:09

    70. D

      Why not use ear buds and Bluetooth? Or just a cel phone?

    71. arrs

      ah yes adults rule and kids drool

    72. Thomas Scalise

      Mark its pronuonced la qua

    73. Rowan


    74. Dylan Scherillo

      I am now convinced mark works for the astros

    75. EquableChloeDog

      5:34 Every creepy music teacher ever

    76. Donal Murphy

      The one thing I have learned from Mark is that you should not mess with him. He will take science and shove it down your throat till you learn your lesson.

    77. Connor Burger

      I guess the steak sign literally just because that was my steak sign

    78. BG Tjoo9 pls sub

      He's like the smarter Michael reeves

    79. Carolina Enthusiast

      Houston Astros : Write that down! Write that down! I know this is a super late comment and this was a while ago but still, lol

    80. Quster

      You can half steel you go half way dummie

    81. Roar Imer Nabe-Nielsen

      So with a computer that had a lot of time could know what you would make in the next video

    82. Mohib MOIN

      Mark I love you but this is so long

    83. Andrew Doesmc

      10:22 I’m scared. Mark has a flamethrower

    84. Xiarn

      I thought it was about people stealing physical signs when I read the title

      1. DingDongDeathChime

        right? I was so confused at the start

      2. Thomas CS

        Same! I totally expected that guy standing near the sign at the start to just suddenly grab the sign and run away...

      3. GoX91

        Same here lol

    85. mint _

      Curious to know if this would still work if the sign given was based on what inning it was. So the first inning would be the first sign given, second inning the second sign and so on..

    86. Shiro Craft

      well its also usefull for someone who watch the Basball lives xD but then again not as a team or player since ITS CREATING MARK ROVA!

    87. Mike Brzostowski

      Did he help the Astros cheat lol😆😆😆😆😆

    88. Jan TK

      an idea not sure if its good but 100 l of water vs 200 kg of salt

    89. Gamaray

      Disappointed in mark, he forgot to say that the city of Houston sponsored the video.

    90. Malic Bergevin

      Mark Robber of plays.

    91. XXDanimalz

      We should use this to figure out how I should respond to girls.

    92. Eli Orendi

      When he is explaning the science near the end of the video i was half asleep and jumped because he was poiting a FLAMETHROWER AT ME

    93. Owen Smith

      I figured out the steal on the first try no rewinds or slow downs

    94. Rich Mahogany

      If only he can get the app to trigger trash can bangs...

    95. Insane D

      As a 1st baseman, I stole signs like it was my job! I always had their signs down by the 2nd attempt. Just a slap of the thigh with my glove to tell my pitcher. Didn’t need an app.

    96. Lisa Linehan

      I'm unsubscribing for saying I drool

    97. BrainLoading

      Oh thank you a lot. English isn't my native language, and you just made me understand better how neural networks work than another video in my language. This is quite ironic considering the topic is relatively hard to understand...

    98. Sqackle

      Me as a British person is dying in confusion

    99. Steve J

      Did he use minecraft switches for sound effects haha?

    100. Antonio Salinas

      The comments section: *making jokes about the Astros* Me, an Astros fan: "Never have I been offended by something I completely agree with"

      1. Electronic Bamboo

        @GoX91 what

      2. GoX91

        Be careful people...This guy is a redditor,they repost everywhere what they see online

      3. Pizza

        I feel your pain