All progress bars are like this nowadays. At least for fast jobs (seconds to minute) where estimating time is hard, unreliable, and probably useless. Better fa

All progress bars are like this nowadays. At least for fast jobs (seconds to minute) where estimating time is hard, unreliable, and probably useless. Better fake a progress bar than add dozens of time estimation code for no real value, as long as errors are managed. The only thing you should try to manage is to detect when things are stuck for real and stop the fake animation / manage the situation. But even this is hard. But all of this is just exploiting a psychological gimmick which make you feel than an animation with a predictable end feels to end faster than, say, some spinner.