I think there are only a few people in the world who even have the education that they "could be" Satoshi. Until the real Satoshi shows up, Craig Wright as far as I'm concerned holds the Satoshi mantle. If it's not him then who can even make the short list to possibly be him? No-one I'm aware of. Gotta be him. Craig is only one posting about the white paper as if he just really really understands it (which he would if he wrote it). He meets the criteria of being super rich (owns a supercomputer, electricity from iceland or some such) that I would expect of the real Satoshi.