... with ALS who communicates with the "letter by letter, blinking his left eye in response to a helper who repeatedly recited the alphabet" method. He's been paralyzed for 25 years with just eye movements and a little in his face; he's on a ventilator. Family members and caregivers facilitate talking. They have the alphabet divided into numbered groups. The facilitator begins by slowly saying "1,2,3...". The guy twitches his cheek at the appropriate time. The numbered groups are 4-5 letters in order of common occurrence (e.g. group 1 is something like e,t,a,s). If the guy twitches on "1" then the aide slowly says "e, t, a, s" watching for a twitch. In this way he spells out a message.
The guy uses a computer with a device attached to his glasses that reads his eye movements. Typing is excrutiatingly slow. The reader or listener must be very patient. The best way to communicate with him is asynchronously by email.
Nevertheless, he is hilarious and a delight to be with.