Sakash wrote:for example why does quantum mechanic wave function collapse on conscious observation? why does photon turn in to particle from wave when someone is observing and remains wave if no one observes?
He is trying to explain the role of consciousness in physics which is a new concept and will take time to mature. but it is in right direction. to answer your question in the first place, biological explanation you have show is worthless as it predicts nothing. you wont be able to know why and with whom you will fall in love with those chemicals.
Physics can't explain this? Since when? There are several interpretations of quantum mechanics, and most of them already address this question. One states that they never collapse in the first place while others say that wave functions just don't accurately describe quantum systems enough.
Also, people have already called bullshit on your source's claims.