So I have not been able to find too much information about this. Specifically in the context of the double slit experiment. I've seen just about the only video on Youtube that tries to explain this, but I did not understand-- I felt like somethings were not explained. I am acquainted with why a wave function collapses, and how interference patterns are created and so on. Could someone please explain the set-up of such situation and what exactly is happening/the point/the concept of the experiment in the context MFI.