Here is an MWI perspective from an actual physicist: http://www.preposterousuniverse.com/blog/2014/02/12/the-many-worlds-of-quantum-mechanics/
A very thorough explanation of QM by Sean, much better quality than the QM sequence: http://preposterousuniverse.com/eternitytohere/quantum/
Relevant video debate: http://www.preposterousuniverse.com/blog/2014/05/29/quantum-mechanics-smackdown/
Read/watch those first.
I used the linked resources and didn't come off much wiser, but I guess regoing over he basics is only good. I guess it hammered home that there is convergence on the double slit experiment. However in all these things it's a scenario where you start off in one world split it into multiple and then coverge to a result world. However in my understanding pure states are hard to prepare. There are a multiple worlds where we run the experiment a little later or in a little diffferent conditions. Won't those worlds also have a chance to effect our experiment in...
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