What is Wigners Friend?

"Wigner's friend" is a thought experiment in quantum mechanics that illustrates the implications of observer effects in the measurement process. Proposed by the physicist Eugene Wigner in the 1960s, the scenario challenges our understanding of reality and observation in quantum theory, raising questions about the nature of consciousness and the role of observers in the universe. #quantumphysics #quantummechanics

[ratbullkan]

I bet 1000:1 it collapses the wave function only for his friend.
The fact which we take for granted from our everyday experience that we all share the same form of reality, i e. a chair/person is an identical chair/person for both uf us, is in fact a peculiar, exceptional case inside broader physics.

[KarenisNo]

Fascinating! Like "Schrődingers Chair" - if not perceived, is it really there? Thank you for posting! Makes one think for sure!