I think your statements are a little too general, even though you might have a point here: What does it tell about the the real life "interoperability" on the

I think your statements are a little too general, even though you might have a point here: What does it tell about the the real life "interoperability" on the .net platform, when every language needs all the features? My guess would be: the technical "possibility" is there yet the eco-system as a whole of day to day developers, technical managers, project life-cycles and real life products with some legacy heavily bends towards single application development language even though developers mostly already use several other languages like for scripting or sql, html, css, javascript etc.