Yu-An Chen Posted almost 2 years ago How does virtuality translate into reality? Observer effect state that the act of observation of a process or an event will have different outcome comparing with no observation. But in order to analyze the relation between the input and output, observation is inevitable. Base on such assumption, then nothing we observe is real. But to not to observe anything to get the "reality" is not achievable. So I think it is really difficult to distinguish real and imaginary.