Thus, by controlling the properties of the quantum observer the scientists managed to control the extent of its influence on the electrons' behavior.
Nature is given by Maxwell equations. To measure a B field you need a current and to measure a current you need a B field. This is also the basis of information theory that exactly shows how uncertainty arises because quantization is given by the measurement and finally by the probability of the value measured as there is no measurement without interaction.
Information theory is the fundament for measurement of signals -somethings physicists seem to forget or just never learnt.