The world at his fingertips: Alan Martin shares a joke with Jon Henley. Photograph: Christopher Thomond for the Guardian
I am sitting staring at a computer screen. So far so banal, except that this screen features a red dot that, by some technological magic, tracks the movement of my eyes: I can place it where I want on the screen just by looking. The bottom of the screen portrays a keyboard, although I could, if I chose, select other screens made up of various vocabulary, grammar and expression-based menus, which, for experienced users, would doubtless speed things up.
Because this is painstaking. I look at a letter, and the red dot sits on it. I continue staring, and the dot blinks, twice. The letter then pops up at the top of the screen. I move on to the next letter (or, more often, the backspace).
It gets easier: there’s predictive text, like on a mobile phone, so I stare at the word I want, which gets added to my sentence. Eventually, the phrase is complete. I stare at it and it blinks. “What an amazing machine,” says a cool, synthesised voice. “Rather let down by its user.”
Read the complete article at The Guardian.