In the recent times, interacting with machines has become instinctive. Moreover, the recent improvements in NUIs are making sure that machines can comprehend human gestures, touch, tone of voice, and thoughts in a much better way. Even so, designing for Natural Consumer Interfaces is quite challenging as designers have to keep below parameters in mind.

SOUNDS SCI-FI NEVERTHELESS TIRING
Minority Report like office sounds really cool, but working with hands upward for a for a longer time period tire people. URINARY INCONTINENCE should naturally and perfectly interact with the users without tiring them.

natural user extrémité

Image Credit rating

CAN'T AFFORD TO DISREGARD THE ACCESSIBILITY
Some actions might not be possible for users with afflictions. Therefore you can't do away with the support for assistive technology like Joysticks or electronic aiming devices.