Hello all, I submitted an article (to the Royal Society) concerning the possibility (or rather the impossibility) of the Born rule to emerge out of the unitary part of quantum theory, as is one of the "programme points" in MWI. An almost last version (I messed up some stuff on my server so that I didn't put up the most recent version and for the moment I don't have access so I'll fix this later) of the paper can be found at: http://perso.wanadoo.fr/patrick.vanesch/articles/deutsch01.pdf Feel free to discuss it. There are still a lot of typos and so on which I already corrected, but the main content is there. BTW, I don't know if it will be accepted, we'll see. But I would like to upload it to the arxiv, only I don't have endorsement for quant-ph. So if someone can endorse me, that would be nice. thanks and cheers, Patrick.