Retarded Idea Time

Every so often you get an idea that seems awesome when you're half asleep, but when fully awake seems stupid. Post them ITT

Using regular expressions to parse other data structures (list trees sets etc)

An OS completely based on relational data, functional programming and event stream processing^[1]. It's not that the concept itself is retarded, but really poorly thought, because I haven't the faintest idea how to pull it off.

References:                                
1. http://en.wikipedia.org/wiki/Event_stream_processing