The Copenhagen Interpretation of Quantum Measurement

The copenhagen interpretation sort of lives or dies non what you mean by measurement, right? And so it is tempting to say, ok, well, maybe we can get around this problem by saying that the measurement device is itself also quantum. But if you use the shrodinger equationd then all that happens when you make a measurement is you go from your measured system in a superposition and your measuring device ready to make a measurement. That's not going to get you out of it entually. You really need to get comfortable with whatever it is that a measurement means.