Abstract The idea that consciousness is somehow needed to collapse the wave function was emphasized especially by Eugene Wigner in 1961 and has recently been discussed by e.g. David Chalmers and Kelvin McQueen. We revisit the reasons why the idea was proposed in the first place and briefly consider Chalmers and McQueen’s discussion.
Quantum physics and gravity are two different concepts which need to be unified in a widely acceptable way. While electromagnetism, weak nuclear force, and strong nuclear force were accurately unified under the framework of quantum field theory, gravity remains elusive and couldn’t be unified with quantum mechanics. However, gravity is accurately understood by the theory of relativity, which is...