Are there any inctances where by examing the trajectory where a subatom went are there experiments where wave functions collapse independently of an observer? Also I was wondering if wave functions collapse naturlley in the universe when they collide into other subatoms or such things. A thought experiment if you blindfold someone lie to them that you are going to put them in a square room with nothing in it then put ear phones on them and stick them in a corner of the room and let them wander aimlessly for a way out. All the while there is a chair in the middle of the room according to the "observer" interpretation of QM physics the person should walk right through the chair. Obviously they dont and bump right into the chair. How do those who preach the counsciess observer interpretaion of QM physics explain this?