I want to know the answer to the following question:
Were von Neumann's conclusions of collapse of entire universe cause accepted widely?
All the background I'm provided with is that "Since something "outside the calculation" was needed to collapse the wave function, von Neumann concluded that the collapse was caused by the consciousness of the experimenter (although this view was accepted by Eugene Wigner, the Von Neumann–Wigner interpretation never gained acceptance amongst the majority of physicists).". Is that enough to answer the question?
Answer: yes