I can turn a simple A* implementation into a behemoth of self-modifying, virtualised, encrypted code that will suddenly turn into Dijkstra as soon as you try to trace its behaviour.

The time that assembly code was readable by humans is long past, and I can't afford to pay NSA-level crackers who can reverse-engineer the 60MB of executable code in the Facebook app because I have a hunch that they're violating the image processing patent I have.