A mentally mapped grid of the screen appears much larger when the user is closer to the screen as opposed to further away .
Grid is the brain 's grid to keep a consistent mental representation that gives people the ability to function under such dynamic conditions .
A mentally mapped grid of the screen appears much larger when the user is closer to the screen as opposed to further away , and it is the brain 's ability to keep a consistent mental representation that gives people the ability to function under such dynamic conditions .