The Indifference Engine is an absurd machine: a serial computer that makes a lamp flash pseudo-randomly using a non-linear mathematical formula adhering to the principles of chaos theory.
Adding to the chaos is the fact that the floating point number passed serially between the computers was only in 4 bit resolution, and also the light toggling flip flop circuit was not functioning correctly (it had all the appearances of a distinct lack of de-bounce).
The Indifference Engine featured prominently at the inaugural Workshop Showroom Showcase. Some even thought it might have been art.
Youtube video of the Indifference Engine in full operation coming soon. More photos from WSSR showcase #1 here.