It feels natural and can be seen as a representation of where phones may and ought to be headed, to a place where they predict and judge your intent using a higher level of intelligence than the usual impassive expectation of conventional input.
And the impassive tag is misplaced, for when addressed he does not hide his feelings - beaming and slapping his thigh at a subject he seeks to engage upon, or frowning in irritation at a question he views as based on nonsensical rumor.