How Slow is Slow?

Without a point of reference for comparison—a watched and ticking timer or a head-to-head race—most people won’t notice less than 33% difference in the time to complete a familiar task. A typical observer—one not actually timing things—faced with an hour-long task that completed in 40 minutes will think “hey, that seemed fast.” The same observer, waiting for a one second task to complete, will generally start frowning around 1,300ms.