What do you mean by that? Rossmann talks about what he doesn't know all the time. He's not an engineer, yet he thinks he can proclaim that Apple is terrible at engineering and runs with it as a foregone conclusion, without ever having an actual engineer take a look or play Devil's Advocate. This seems irresponsible considering the size of his platform, weakens his argument, and is also odd considering many engineers would happily do a guest appearance.