[jrochkind1]

If they don't know the difference between diesel and gasoline, how do they know if the one they want is "diesel" or "gasoline"?

But, yes, clearly, the goal is removing configuration until the app does one thing well, not badly.

[pessimizer]

Only if you want 9000 apps, because then it becomes a question of which of those super narrowly focused apps will work to do what you want to do. An email client that only emails your mother is a good emailing your mother client, but a bad email client. If they take away configuration for people with stepmothers or two mothers, because it's only a 5% use case, it's even a bad emailing your mother client.

If you know your car runs on gasoline, and you don't know the difference between gasoline and diesel, then you see a sign that says "diesel is not gasoline," you know that diesel is not what you're looking for - even though you still don't know the difference.