I searched through many discussion on Physics Stack Exchange about "Why observation cause collapse of wave function?" and I am totally confused. Is it already solved by modern quantum physics?
I know that the real cause is act of measurement. So collapse of electron wave function is caused by interaction between this electron and photon from detector used for measurement? It sound quite clear for me, that the "interaction" cause collapse, am I right? So where is the catch? Because there are so many discussion about it, some peoples points that consciousness cause collapse... I don't where the real problem is if the answer is so simple: "interaction"?
From the other hand, if we send photons to interact with electron, without measuring it, will it still cause collapse?
UPDATE, after marking as duplicate:
I know that the act of measurement cause collapse of wave function. Basically measurement means probing sample electron with photon and that interaction cause collapse, am I right? So what about other particles in environment, will those particles cause wave function collapse?
Going one stop further:
In double slit experiment with electron, if we don't measure electron state but rather than that we interact with if via laser - bombard it with photons, still there are no measurements! Will it cause collapse of electron wave function?