Reversibility is a property of an interface input control, where the user can return the control to its initial state at any time

Duolingo used to be a great app. I opened in to practice almost every day. But then they changed the design

Often when we open an application, we see a screen that tells us about it or about some recently added features

In ATP Episode 439 Marco Arment had a good speech on UI stability, I even took time to write it down

Apple came up with this interface behavior that would seem strange before

Someone has tweeted this and got several retweets

As you may know, modes are bad. Even worse are timed modes often used in the human interface of consumer electronics

John Siracusa in the review