I'm a physics noob too, but from what I understand, the quantum effects don't happen on macroscopic scale because of high temperature and lack of "structure".

I'm a physics noob too, but from what I understand, the quantum effects don't happen on macroscopic scale because of high temperature and lack of "structure". Every interaction of particles seems to change the state ("collapse the wave function") of the particles, so such a chaotic environment makes things start behaving in a predictable way. Sort of how balls falling in a Galton board seem to converge to Gauss normal distribution: https://en.wikipedia.org/wiki/Galton_board https://en.wikipedia.org/wiki/Galton_board In low enough temperature and regular enough structure, even macroscopic objects can be entangled (or, I assume, show other quantum effects): https://www.scientificamerican.com/article/scientists-supersize-quantum-effects-with-entangled-drum-duet1/ https://www.scientificamerican.com/article/scientists-supers...