A / B testing: time is nothing, animation is everything!

An interesting fact was discovered as a result of A / B testing of the Facebook application loading indicators.

We have two options for the Facebook mobile app loader:



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1) when using the option to the left



users accused of slowing down Facebook;

2) when using the option on the right



users blamed the iOS operating system for sluggishness.

via .

upd. Reasoning (en.) - The Psychology of Waiting, Loading Animations, and Facebook .