> No one knows how this collapse occurs, but a conscious observer is usually assumed to be involved No it's not. Only fringe interpretations like https://en.wi

> No one knows how this collapse occurs, but a conscious observer is usually assumed to be involved No it's not. Only fringe interpretations like https://en.wikipedia.org/wiki/Von_Neumann%E2%80%93Wigner_interpretation https://en.wikipedia.org/wiki/Von_Neumann%E2%80%93Wigner_int... involve conciousness at all. And i'ts not strange that people don't like the idea of undefined, possibly non-existing stuff (conciousness) to be involved in physics. It's like defining laws of motion basing on "walking". Walking is what some configurations of atoms do, you don't put special cases in your theory for these things. Also: > A poll was conducted at a quantum mechanics conference in 2011 using 33 participants (including physicists, mathematicians, and philosophers). Researchers found that 6% of participants (2 of the 33) indicated that they believed the observer "plays a distinguished physical role (e.g., wave-function collapse by consciousness)". They also mention that "Popular accounts have sometimes suggested that the Copenhagen interpretation attributes such a role to consciousness. In our view, this is to misunderstand the Copenhagen interpretation."