Dechoernce affect all - the macro and the micro

 . One should thus beware of common overgeneralisations. For instance, decoherence does not affect only and all ‘macroscopic systems’. It is true that middle-sized objects, say, on the Earth’s surface will be very effectively decohered by the air in the atmosphere, and this is an excellent example of decoherence at work. On the other hand, there are also very good examples of decoherence-like interactions affecting microscopic systems.