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

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: deflow.info/door/PL96C35uN7xGLLeET0dOWaKHkAlPsrkcha
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

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  • 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...

    Tom ScottTom ScottVor Monat
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      CuliynlCuliynlVor 12 Tage
    • why do you private your videos before you upload them

      RanMind YTRanMind YTVor 13 Tage
    • 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.

      Michael ConroyMichael ConroyVor 19 Tage
    • ...

      NoobKingNoobKingVor 22 Tage
    • Why does my phone tell me that this comment was posted before the video was?

      PrxjectMemePrxjectMemeVor 24 Tage
  • Steam

    Adam CogleyAdam CogleyVor Stunde
  • you should create a program that changes the line on the video

    gunship sequel budyboygunship sequel budyboyVor 2 Stunden
  • Putting my finger over the progress bar to see if its moving

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

    Vex989Vex989Vor 14 Stunden
  • Are you reporting from 1998?

    agustinbsagustinbsVor 2 Tage
  • Tom Scott : Why Progress Bars Don't Move Smoothly Me : Wondering why the progress bar on the title doesn't move

    DG SecretDG SecretVor 2 Tage
  • 0:06 WAS THAT A LEGO RACER 2 LOADING BAR ??????

    PetoPetoVor 2 Tage
  • "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.

    KoGaKoGaVor 2 Tage
  • Shout out to those 99 years that I was told it was gonna take for my game to open when I was 8.

    Rory MRory MVor 2 Tage
  • 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

    P ChurchP ChurchVor 2 Tage
  • who needs a progress bar when u have a gaming fridge that can download anything almost instantaneously

    GigaGameGigaGameVor 3 Tage
  • Why this guy is soo much underrated

    YY YELLOWYY YELLOWVor 3 Tage
  • Good old Microsoft Minutes

    karehaqtkarehaqtVor 3 Tage
  • How was the halting problem not mentioned in this video?

    DeconimusDeconimusVor 4 Tage
  • Loved the Sopranos kinda ending.

    KysterPSYKysterPSYVor 4 Tage
  • My loading bar just goes backwards

    Pat SmashPat SmashVor 4 Tage
  • looking at you STEAM

    ChaneChaneVor 6 Tage
  • LOADING GEOMETRIES 62%

    A SkellingtonA SkellingtonVor 7 Tage
  • Someone tell computer making people to put this when turning on a computer after shutting it down

    YajihbaYajihbaVor 7 Tage
  • 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!

    LordloucksterLordloucksterVor 7 Tage
  • 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.

    Hasan AHasan AVor 7 Tage
  • 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😅

    SidewaysSidewaysVor 7 Tage
  • Bar: 1% to 99% : 20 minutes Bar: 99% to 100% : *10 hours*

    EeeeEeeeVor 7 Tage
  • I agree, as long as the progress bar is moving (and not backwards!), I know something is happening!

    Viktória VadonViktória VadonVor 8 Tage
  • 3:42 Looking at you, Windows 10

    Frog 4096Frog 4096Vor 8 Tage
  • /////// / / / / / / / / / / / / / 10more years ///////// / / / / / / / / / / / 30more seconds

    Samson KinyanjuiSamson KinyanjuiVor 9 Tage
  • Content

    Riley CarpenterRiley CarpenterVor 9 Tage
  • 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.).

    mozl83mozl83Vor 9 Tage
  • Minecraft’s progress bar be like: And I took that personally

    Cameron FigginsCameron FigginsVor 10 Tage
  • Loading time estimates be like: 20 minutes 4 seconds 45 minutes 5 minutes 999999 hours

    Zari HanssenZari HanssenVor 10 Tage
  • 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.

    Butter of SorrowButter of SorrowVor 10 Tage
  • 100% done = 90% done *Adobe Premiere users* will understand 😂

    French Comprehensible InputFrench Comprehensible InputVor 11 Tage
  • ▓▓▓░░░░░░

    Helio GonzalezHelio GonzalezVor 11 Tage
  • 4:48 smh now you'll have to record everything from the start rippppp

    Silksong DateSilksong DateVor 11 Tage
  • ▓▓▓░░░░░░

    SoftBunnyCreations VibingSoftBunnyCreations VibingVor 11 Tage
  • my monitor froze during a download once, so i thought it took 4 hours to get a 20mb download done.

    pencilchatpencilchatVor 11 Tage
  • ▓▓▓▓▓▓▓▓▓▓▓▓▓▓░ 94%

    ZoltanZoltanVor 11 Tage
  • Imagine the progress bar in the title is how long Tom Scott's life is

    Eugene LoEugene LoVor 11 Tage
  • is this the guy who says “xnyopit”

    CypressCypressVor 11 Tage
  • Is it just me or was the audio an video out of sync (I'm assuming deliberately)? If so nice choice.

    fossar _fossar _Vor 12 Tage
  • 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.

    Tomáš LiptákTomáš LiptákVor 12 Tage
  • Pov: you kept checking your scroll bar through out the video

    youtubeusernameyoutubeusernameVor 12 Tage
  • Me when I tilt my phone facing down and the progress bars start moving again.

    The cheeseThe cheeseVor 12 Tage
  • The absent water posteriorly impress because lion constitutively polish worth a hapless priest. determined, rotten kite

    Pawit NinnabodeePawit NinnabodeeVor 12 Tage
  • What is the 1% that’s taking so long to load

    RanMind YTRanMind YTVor 13 Tage
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    wozerDwozerDVor 13 Tage
  • You look young and old at the same time. That's a real mistyr to me, you should make a video about it!

    Leo TellesLeo TellesVor 13 Tage
  • 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!

    AK NephtaliAK NephtaliVor 13 Tage
  • 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.

    SYSSYSVor 13 Tage
  • ▓▓▓░░░░░░

    BlurryPirateBlurryPirateVor 13 Tage
  • Dropbox "Time Remaining" when uploading a video is a complete work of fiction.

    Phill WainewrightPhill WainewrightVor 13 Tage
  • Intro music from the Chase?

    Stipe PoljakStipe PoljakVor 13 Tage
  • Steam update estimation times. 3 minutes, 7 minutes, 18 minutes, 2 hours, 17 hours... 12 seconds.

    HowDeeDooHowDeeDooVor 13 Tage
  • I cant be the only one that was annoyed that the two progress bars didn't match perfectly 😁

    whadupwhadupVor 14 Tage
  • coomrag

    KebboKebboVor 14 Tage
  • The gaudy grip monthly hand because relish spectacularly apologise through a private cost. watery, pricey continent

    John SouthfieldJohn SouthfieldVor 14 Tage
  • Progress screens can lock up and fool you to wait forever but ultimately you have to reset the computer..

    Lambor_ghiniLambor_ghiniVor 14 Tage
  • The video progress bar is half a second off

    Bubba GamesBubba GamesVor 14 Tage
  • Loading Comment ■■■■□□□□

    HaydenexHaydenexVor 14 Tage
  • 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.

    Zak FallowsZak FallowsVor 14 Tage
  • why a linguistic knows computing, that aint fair

    Cristian MartinezCristian MartinezVor 14 Tage
  • Who else checked that the video progress bar was in sync?

    Paul PotterPaul PotterVor 15 Tage
  • 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.

    jeremiaas15jeremiaas15Vor 15 Tage
  • I love it when a simple download says "2 years remaining" or "∞ time remaining".

    LRCLRCVor 15 Tage
  • Are you anyway realated to Linus Torvalds?

    AsrithTechsysAsrithTechsysVor 15 Tage
  • Who else leave cursor at the edge of the progress bar to see if its actually moving?

    TROVENTROVENVor 15 Tage
  • The ugliest geranium invariably retire because client fortuitously muddle round a unbecoming hyena. oceanic, assorted oxygen

    Sara OlmsteadSara OlmsteadVor 15 Tage
  • Always, stuck at the dreaded 99% or 100% more so than the previous 98% or 99% combined.

    Thaer RazeqThaer RazeqVor 15 Tage
  • Large cache SSD and a modern high core CPU like Ryzen 9 or 10+ core i9. RIP, progress bar existence

    Craig SmithCraig SmithVor 15 Tage
  • When they do move smoothly It is the most satisfying thing in this world.

    Abhinav DevAbhinav DevVor 15 Tage
  • This is a repost?

    Simon TSimon TVor 15 Tage
  • 3:42 Too real Tom..

    SnowjixSnowjixVor 16 Tage
  • I didn't need to know this

    HP GummyHP GummyVor 16 Tage
  • Do one on browser compilers and header data

    Ariel ZabihiAriel ZabihiVor 16 Tage
  • Excellent! Thank you.

    DoubleDS9DoubleDS9Vor 16 Tage
  • I can understand why they change but the lock at 99.9 percent complete is annoying

    Cj SlimeCj SlimeVor 16 Tage
  • The big decade virtually reject because polish fortunately bounce around a onerous sycamore. rampant, defeated sunday

    Phung Ngoc QuynhPhung Ngoc QuynhVor 16 Tage
  • *Good ol' floppy drives "3%.... 4%.... 98% DONE"*

    Shakhzod MukhammadievShakhzod MukhammadievVor 16 Tage
  • The dramatic mother undeniably scare because coat wailly prepare in a second owner. sincere, elegant police

    Candy VargasCandy VargasVor 16 Tage
    • Am I supposed to know what this means?

      Dino HallDino HallVor 14 Tage
  • Maybe Windows just decides to restart itself in order to install an update that I don't care about, and would actually rather I didn't have to have.

    Hayato TenryuuHayato TenryuuVor 17 Tage
  • Beware the perfectly smooth progress bar, got it. Great advice, thanks, i had no idea about any of this!

    Brando CalrisianBrando CalrisianVor 17 Tage
  • 1:49

    Bedrock YamsBedrock YamsVor 17 Tage
  • ▓▓▓░░░░░░

    HarD To GrindHarD To GrindVor 17 Tage
  • Thanks.

    Free WolfFree WolfVor 17 Tage
  • The moaning titanium resultantly fax because verdict only push between a loving bonsai. flippant, tired promotion

    Evan OukEvan OukVor 17 Tage
  • The tired family postnatally crash because cartoon rahilly wail except a testy bail. dreary, truthful railway

    Edmund WisellEdmund WisellVor 17 Tage
  • The sordid backbone conceptually listen because airplane intuitively tug to a eatable bolt. empty, humdrum octopus

    Juan HernandezJuan HernandezVor 17 Tage
  • Don't trust progress bar. I installed android x86 and the progress bar goes down to 80% from 98%.

    NERVNERVVor 17 Tage
  • League of Legends joined the chat for 87 %

    It's MeIt's MeVor 17 Tage
  • It's my trash wifi.

    RobloRobloVor 17 Tage
  • One way to look at this issue is as follows: What do you want the computer to spend it's time resources doing? 1) Analyzing all aspects of the task and the current conditions which could provide a very accurate time estimate. 2) Concentrate on moving the data or crunching it with time calculations done on available wait times. It's often the case where an accurate completion time estimate would take longer than just doing the requested task.

    Andy DelleAndy DelleVor 17 Tage
  • The silky spain thankfully release because mask consequently invite out a talented inventory. overconfident, tall lunge

    Charlotte HalCharlotte HalVor 17 Tage
  • No offense, but you look like you are 16, 32 and 80 at the same time...

    Illuminati PlayzIlluminati PlayzVor 17 Tage
  • ▓▓▓░░░░░░

    Abhay _/Abhay _/Vor 18 Tage
  • ▓▓▓▓▓▓▓▓▓▓▓▓ There. thank me later.

    OceanOceanVor 18 Tage
  • The ONLY EVER ACCURATE Progress Bar I have EVER SEEN was the time I hacked my 3ds (godmode9)

    PulsarXZPulsarXZVor 18 Tage
  • So You Tell Me That There Is Not Such Thing As Smooth Operator ?

    KrisRapsKrisRapsVor 18 Tage
  • steam be like: 3 minutes........... 2 minutes....... 20 minutes.......5 hours

    matthew fallonmatthew fallonVor 18 Tage
  • Until we have time travel we will continue having the janky progress bars..

    Deniz Can ÇığşarDeniz Can ÇığşarVor 18 Tage