What is the fundamental objection to natural language interfaces?

Верно ли следующее утверждение:

Natural language interfaces are about as unnatural as you can get.

What is the problem with multi-touch interfaces?

What are the main advantages of touch-screen interfaces?

In the 1990s people were already used to touch-screen interfaces.

What happened with double-clicking in mouse-based interfaces?

Touch-screen interfaces on mobile phones are rare now.

For some tasks mouse-driven interfaces can be far more efficient than touch-screen ones.

What is the syntax of the language?

Why do many language students use word processors?

Укажите правильный перевод markup language: