This video shows the process that a blind man goes through in using a particular ATM for the first time; the machine he selects is one that has a ton of assistive features that are aimed at making use easier for visually impaired people, but it's apparent that this guy -- blind film critic Tommy Edison -- has to go through a heroic effort to get through a technological ritual that most of us take for granted. I also felt for Edison in light of the advice to shield your PIN from potential hidden cameras, a task that seems to add transcendent difficulty to an already tricky task.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.