I've recently been reading the book The Dancing Wu Li Masters which is supposed to be a very basic introduction to quantum physics. I have a question on the following quote: "Up to now, we have said that the collapse occurs when somebody looks at the observed system. This is only one point of view. Another opinion [...] is that the wave function collapses when I look at the observed system." I'm new to quantum physics in general, so I was wondering what the difference was between "somebody" and "I" looking at the observed system in. I'm questioning it since it was so specifically expressed as two opinions on the question of when the wave function collapses. Thanks for any help/enlightenment anyone can offer!