> What I'm arguing against is uniformity of interface. > You wouldn't connect a tyre to a wheel the same way you would mount an engine to a chassis. Yes, you'

> What I'm arguing against is uniformity of interface. > You wouldn't connect a tyre to a wheel the same way you would mount an engine to a chassis. Yes, you're right, LEGO is extremely uniform, and no real system is _that_ uniform. And even a uniform interface doesn't mean any combination makes sense. Attaching a LEGO brick with wheels on the roof of a LEGO car is not different than soldering an axle on the roof of a car: technically possible but utterly useless. Actually, soldering an axle on the roof of a car is composing uniform interfaces: atoms in chemical bonds form a finite set of building blocks too!