Why Progress Bars Don't Move Smoothly ▓▓▓░░░░░░

21 491 Näkymät 2,2 milj.

4 minutes remaining. Then 15 seconds. Then 5 hours. Why can't computers just tell you how long something's going to take? • MORE BASICS: fipulse.info/list-PL96C35uN7xGLLeET0dOWaKHkAlPsrkcha.html
Written with Sean Elliott SeanMElliott/ • Graphics by William Marler wmad.co.uk
I'm at tomscott.com
on Twitter at tomscott
on Facebook at tomscott
and on Instagram as tomscottgo


  1. Tom Scott
    Tom Scott
    2 kuukautta sitten

    I'm having to film back in the Tiny Room against green-screen again, as lockdown means the Centre for Computing History is closed! Hopefully they'll be open again soon, although that depends on a very different kind of progress...

    1. Culiynl
      21 päivä sitten


    2. RanMind YT
      RanMind YT
      21 päivä sitten

      why do you private your videos before you upload them

    3. Michael Conroy
      Michael Conroy
      27 päivää sitten

      How did you put in the time estimate of this video in the script as you were recoring? I slowed down the video speed to .25 but can't see where you may have stitched two takes together.

    4. NoobKing
      Uukausi sitten


    5. PrxjectMeme
      Uukausi sitten

      Why does my phone tell me that this comment was posted before the video was?

  2. Geomontage
    2 tuntia sitten

    If only the UK government had a progress bar. I struggle to believe things are still 'happening' at times we are told great 'progress' is being made.

  3. ver strahlt
    ver strahlt
    4 tuntia sitten

    well explained.

  4. Sandstorm930
    10 tuntia sitten

    Sandstorm approved use of “Janky”

  5. tulsatrash
    15 tuntia sitten

    What is the longest rail train to have ever moved in or through France?

  6. Kreyk 29
    Kreyk 29
    19 tuntia sitten

    The reason why don't they move smoothly is that they are not straight, we look at them and don't even think about the third dimension

  7. szubert - max
    szubert - max
    Päivä sitten

    1:57 maybe 4 different loading bars? For each process?

  8. Philippe Futureboy
    Philippe Futureboy
    2 päivää sitten

    I didn’t expect that Tom Scott.exe could be rebooted. The more you know 🌟

  9. theawesomness07
    2 päivää sitten

    Among Us downloading task be like: Estimated time: 4 days *2 seconds later* Estimated time: 6 seconds

  10. Christoph Southwell
    Christoph Southwell
    3 päivää sitten

    Gosh Tom, call me out why don't you!

  11. ike
    3 päivää sitten

    I like to combine the speed in rate of transfer or time remaining while also having my harddrive light & CPU task manager to see which is bottle-necking at what point. This is a form of entertainment I guess

  12. flex
    3 päivää sitten

    I love the bars that stop at 100% for 10 minutes or so

  13. Paulo Lukeny
    Paulo Lukeny
    4 päivää sitten

    What is this golden piece of chanel that just dropped on my recommendations, SUBBED!

  14. Windows 10X
    Windows 10X
    4 päivää sitten

    It’s actually placebo its jus randomly stoping at random intervals and thats why it stops at 99% cuz it’s actually at 70% or 50% or maybe even 30%

  15. SuperPlayer56 Gaming
    SuperPlayer56 Gaming
    4 päivää sitten

    Things to do do, to make progress bar faster: Buy an ssd Upgrade ram (and probably buy more ram than you have on a computer) Buy better proccesor Buy better router/modem and get faster internet Buy faster hdd(s) Install linux Congratulations!!! Your game/program now loads/downloads/installs faster!

  16. dick harambe
    dick harambe
    4 päivää sitten

    Working on updates 2% complete 1 hour later Working on updates 10% complete Working on updates 100% complete

  17. Ruelle Heroux
    Ruelle Heroux
    5 päivää sitten

    Can i express how perfectly aligned the timer is in video to the FIpulse timer?

  18. ProHolmes
    5 päivää sitten

    I just like windows' there are 7 years left for finish copying your files. While showing me the speed and amount of data left, which definitely won't be 7 years if i divide data amount by speed.

  19. shmo247
    5 päivää sitten

    Modern warfare updates: 1%.......2%.........not enough storage delete 148gb of data

  20. Thot Slayer 420
    Thot Slayer 420
    6 päivää sitten

    what about a 2D progress block, width for data (so maybe mb or gb) and height for file count, never seen one, just thought of it

  21. kalle anka
    kalle anka
    7 päivää sitten

    Best solution would be to put a title to every segemt of the progress bar. Anyone who watches porn on the hub will have found this out. If you dont care about foreplay you know exactly on te second to skip to, to skip that part. So for a progress bar for a install. Just title the segement so that we know what part the computer is working on and we know what we might think of upgrading

  22. RamennBowls
    7 päivää sitten

    "The most important job is to reassure that yes, things are happening, progress it being made" That moment when the progress bar is stuck at 99% for about 28 minutes...

  23. Reese606
    8 päivää sitten

    The only accurate progress bar is the 3DS one And no, not the blue one The one when your digitally downloading a game off of the eShop

  24. Ask Master
    Ask Master
    8 päivää sitten

    100% ... Restarting... 30% .... ... .. 58% ............... 79% ................ 100% .................................................................... Aaaaand it crashed

  25. Adam Cogley
    Adam Cogley
    8 päivää sitten


  26. gunship sequel budyboy
    gunship sequel budyboy
    8 päivää sitten

    you should create a program that changes the line on the video

  27. YaBoy •
    YaBoy •
    8 päivää sitten

    Putting my finger over the progress bar to see if its moving

  28. Vex989
    9 päivää sitten

    Steam installing a game be like: 1 minute left -- 2 hours left -- 5 days left -- 6 minutes left

  29. agustinbs
    10 päivää sitten

    Are you reporting from 1998?

  30. DG Secret
    DG Secret
    10 päivää sitten

    Tom Scott : Why Progress Bars Don't Move Smoothly Me : Wondering why the progress bar on the title doesn't move

  31. Peto
    10 päivää sitten


  32. KoGa
    11 päivää sitten

    "Why can't computers just tell me how long something is going to take?" Because progress bars don't show you time... they show (suprise!) progress.

  33. Rory M
    Rory M
    11 päivää sitten

    Shout out to those 99 years that I was told it was gonna take for my game to open when I was 8.

  34. P Church
    P Church
    11 päivää sitten

    This is why I leave and do something else when I’m downloading something. If it takes 5 minutes or 2 hours I’ll have something nice to come back to once I remember

  35. GigaGame
    11 päivää sitten

    who needs a progress bar when u have a gaming fridge that can download anything almost instantaneously

    12 päivää sitten

    Why this guy is soo much underrated

  37. karehaqt
    12 päivää sitten

    Good old Microsoft Minutes

  38. Deconimus
    12 päivää sitten

    How was the halting problem not mentioned in this video?

  39. KysterPSY
    13 päivää sitten

    Loved the Sopranos kinda ending.

  40. Pat Smash
    Pat Smash
    13 päivää sitten

    My loading bar just goes backwards

  41. Chane
    15 päivää sitten

    looking at you STEAM

  42. A Skellington
    A Skellington
    15 päivää sitten


  43. Yajihba
    15 päivää sitten

    Someone tell computer making people to put this when turning on a computer after shutting it down

  44. Lordlouckster
    16 päivää sitten

    Solution: Have individual progress bars for each step. Step 1/4: 10% Step 1/4: 20% ... Step 1/4: 100% Step 2/4: 10% Step 2/4: 20% ... Step 4/4: 90% Step 4/4: Done!

  45. Hasan A
    Hasan A
    16 päivää sitten

    The one thing I wish I could do when it came to downloading something is allocate as much resources to downloading as possible. I love that you can still Watch Netflix, have a conference call, and edit a video in Adobe After affects, while downloading somthing, but sometimes I just want to download something, walk away and have the computer just worry about downloading or moving the file.

  46. Sideways
    16 päivää sitten

    This is the corollary to Windows 10 offering to kill any app that takes more than 15 seconds to do something - apparently Windows isn’t seeing a progress bar😅

  47. Eeee
    16 päivää sitten

    Bar: 1% to 99% : 20 minutes Bar: 99% to 100% : *10 hours*

  48. Viktória Vadon
    Viktória Vadon
    17 päivää sitten

    I agree, as long as the progress bar is moving (and not backwards!), I know something is happening!

  49. Frog 4096
    Frog 4096
    17 päivää sitten

    3:42 Looking at you, Windows 10

  50. Samson Kinyanjui
    Samson Kinyanjui
    17 päivää sitten

    /////// / / / / / / / / / / / / / 10more years ///////// / / / / / / / / / / / 30more seconds

  51. Riley Carpenter
    Riley Carpenter
    18 päivää sitten


  52. mozl83
    18 päivää sitten

    That's also why many programmers have gone the other way and just show "progress indicator" instead of progress bars. Like the spinning wheel on Windows. It just shows that the PC didn't freeze and is still working, but you don't have any indication on how long it's going to take. Also if "time" isn't a parameter itself then the progress bar can never be give you a proper "remaining time". A countdown is always accurate because the time itself is the parameter that makes it work. Filetransfer ist based on the files and not on the time, so it will finish when it is finished, not when a certain amount of seconds have passed (like the queue in the supermarket. Fewer people doesn't mean the line is faster. There are just fewer people in front of you.).

  53. Cameron Figgins
    Cameron Figgins
    18 päivää sitten

    Minecraft’s progress bar be like: And I took that personally

  54. Zari Hanssen
    Zari Hanssen
    19 päivää sitten

    Loading time estimates be like: 20 minutes 4 seconds 45 minutes 5 minutes 999999 hours

  55. Butter of Sorrow
    Butter of Sorrow
    19 päivää sitten

    Personally I like loading screens that tell you what exactly they're doing, like most source and goldsource engine games. "Validating game resources." "Sending client info." That kind of thing.

  56. French Comprehensible Input
    French Comprehensible Input
    19 päivää sitten

    100% done = 90% done *Adobe Premiere users* will understand 😂

  57. Helio Gonzalez
    Helio Gonzalez
    19 päivää sitten


  58. Silksong Date
    Silksong Date
    20 päivää sitten

    4:48 smh now you'll have to record everything from the start rippppp

  59. SoftBunnyCreations Vibing
    SoftBunnyCreations Vibing
    20 päivää sitten


  60. pencilchat
    20 päivää sitten

    my monitor froze during a download once, so i thought it took 4 hours to get a 20mb download done.

  61. Zoltan
    20 päivää sitten

    ▓▓▓▓▓▓▓▓▓▓▓▓▓▓░ 94%

  62. Eugene Lo
    Eugene Lo
    20 päivää sitten

    Imagine the progress bar in the title is how long Tom Scott's life is

  63. Cypress
    20 päivää sitten

    is this the guy who says “xnyopit”

  64. fossar _
    fossar _
    20 päivää sitten

    Is it just me or was the audio an video out of sync (I'm assuming deliberately)? If so nice choice.

  65. Tomáš Lipták
    Tomáš Lipták
    21 päivä sitten

    I think the best loading screens are when there are actually two (think winrar) one for the whole process and the other for individual processes. From there you can see that it is actually doing something.

  66. youtubeusername
    21 päivä sitten

    Pov: you kept checking your scroll bar through out the video

  67. The cheese
    The cheese
    21 päivä sitten

    Me when I tilt my phone facing down and the progress bars start moving again.

  68. Pawit Ninnabodee
    Pawit Ninnabodee
    21 päivä sitten

    The absent water posteriorly impress because lion constitutively polish worth a hapless priest. determined, rotten kite

  69. RanMind YT
    RanMind YT
    21 päivä sitten

    What is the 1% that’s taking so long to load

  70. wozerD
    21 päivä sitten


  71. Leo Telles
    Leo Telles
    21 päivä sitten

    You look young and old at the same time. That's a real mistyr to me, you should make a video about it!

  72. AK Nephtali
    AK Nephtali
    21 päivä sitten

    The worst thing is when it goes to 99% immediately and then stays there for what feels like a millennium. Thank you for explaining this in your usual awesome way!

  73. SYS
    21 päivä sitten

    A thing the program could do to resolve, or at least find a more smooth load, is by logging the time, taking the estimated time that it took, and telling you that number. If it was a game, it could show how long it had taken the last 10 times, (assuming you would've loaded it that many times), and let's say a file upload, it could track how long it would take for 100 files, and estimate the amount of time, that this would take because its 10x times larger, or half the size = it would be 10 times longer or ½ times faster.

  74. BlurryPirate
    21 päivä sitten


  75. Phill Wainewright
    Phill Wainewright
    22 päivää sitten

    Dropbox "Time Remaining" when uploading a video is a complete work of fiction.

  76. Stipe Poljak
    Stipe Poljak
    22 päivää sitten

    Intro music from the Chase?

  77. HowDeeDoo
    22 päivää sitten

    Steam update estimation times. 3 minutes, 7 minutes, 18 minutes, 2 hours, 17 hours... 12 seconds.

  78. whadup
    22 päivää sitten

    I cant be the only one that was annoyed that the two progress bars didn't match perfectly 😁

  79. Kebbo
    22 päivää sitten


  80. John Southfield
    John Southfield
    23 päivää sitten

    The gaudy grip monthly hand because relish spectacularly apologise through a private cost. watery, pricey continent

  81. Lambor_ghini
    23 päivää sitten

    Progress screens can lock up and fool you to wait forever but ultimately you have to reset the computer..

  82. Bubba Games
    Bubba Games
    23 päivää sitten

    The video progress bar is half a second off

  83. Haydenex
    23 päivää sitten

    Loading Comment ■■■■□□□□

  84. Zak Fallows
    Zak Fallows
    23 päivää sitten

    I have four letters for you: RTOS. A Real Time Operating System (RTOS) provides hard or soft guarantees of how long a program will take, in instruction cycles. Sometimes this is critically important, for instance if the machine is doing quantitative chemistry and it needs to error out if the reaction time wasn't very close to 90 seconds. It's fun stuff.

  85. Cristian Martinez
    Cristian Martinez
    23 päivää sitten

    why a linguistic knows computing, that aint fair

  86. Paul Potter
    Paul Potter
    23 päivää sitten

    Who else checked that the video progress bar was in sync?

  87. jeremiaas15
    23 päivää sitten

    What I'd like to know is, how is it possible that progress bars always show, even if for a split second, 100%. Surely, if that were truth, the next thing would pop up instead.

  88. LRC
    23 päivää sitten

    I love it when a simple download says "2 years remaining" or "∞ time remaining".

  89. AsrithTechsys
    23 päivää sitten

    Are you anyway realated to Linus Torvalds?

  90. TROVEN
    23 päivää sitten

    Who else leave cursor at the edge of the progress bar to see if its actually moving?

  91. Sara Olmstead
    Sara Olmstead
    24 päivää sitten

    The ugliest geranium invariably retire because client fortuitously muddle round a unbecoming hyena. oceanic, assorted oxygen

  92. Thaer Razeq
    Thaer Razeq
    24 päivää sitten

    Always, stuck at the dreaded 99% or 100% more so than the previous 98% or 99% combined.

  93. Craig Smith
    Craig Smith
    24 päivää sitten

    Large cache SSD and a modern high core CPU like Ryzen 9 or 10+ core i9. RIP, progress bar existence

  94. Abhinav Dev
    Abhinav Dev
    24 päivää sitten

    When they do move smoothly It is the most satisfying thing in this world.

  95. Simon T
    Simon T
    24 päivää sitten

    This is a repost?

  96. Snowjix
    24 päivää sitten

    3:42 Too real Tom..

  97. HP Gummy
    HP Gummy
    24 päivää sitten

    I didn't need to know this

  98. Ariel Zabihi
    Ariel Zabihi
    25 päivää sitten

    Do one on browser compilers and header data

  99. DoubleDS9
    25 päivää sitten

    Excellent! Thank you.

  100. Cj Slime
    Cj Slime
    25 päivää sitten

    I can understand why they change but the lock at 99.9 percent complete is annoying