occasionally the display screens at my local train station don't work. today was one such occasion (though it was working 7 hours earlier, at midnight, when i came home last night).

it was pulsating a nice wobbly pattern, reminiscent of an oscilloscope on a 1970s Open Univeristy program.

There was a man with wild hair and a big beard wearing a labcoat pointing at it with a wooden stick whilst chalking something on a blackboard besides him (i made this last bit up)