For verisimilitude there should be the big pixellated signboard up on a pedestal in the middle of the room, with the giant messages crawling across, and the cla

For verisimilitude there should be the big pixellated signboard up on a pedestal in the middle of the room, with the giant messages crawling across, and the clackety-clack that the film soundtrack played when the messages crawled. Messages like "I'm sorry, Dave. I can't recall the ICBMs. Maybe you would like to play today's Wordle?"