...separation Of The Observer From

The Discontinuous 'reduction Of The Wave Packets' Which Cannot Be Derived From Schroedinger's Equation Is ... A Consequence Of The Transition From The Possible To The Actual.

Can Quantum Mechanics Represent The Fact That An Electron Finds Itself Approximately In A Given Place And That It Moves Approximately With A Given Velocity, And Can We Make These Approximations So Close That They Do Not Cause Experimental Difficulties?

Modern Physics Has Changed Nothing In The Great Classical Disciplines Of, For Instance, Mechanics, Optics, And Heat. Only The Conception Of Hitherto Unexplored Regions, Formed Prematurely From A Knowledge Of Only Certain Parts Of The World, Has Undergone A Decisive Transformation. This Conception, However, Is Always Decisive For The Future Course Of Research.

Nature Allows Only Experimental Situations To Occur Which Can Be Described Within The Framework Of The Formalism Of Quantum Mechanics

The Physicist May Be Satisfied When He Has The Mathematical Scheme And Knows How To Use For The Interpretation Of The Experiments. But He Has To Speak About His Results Also To Non-physicists Who Will Not Be Satisfied Unless Some Explanation Is Given In Plain Language. Even For The Physicist The Description In Plain Language Will Be The Criterion Of The Degree Of Understanding That Has Been Reached.