Richard, MIB, Jacob
I believe all 3 of these are using, going to use, or have used the same power of possesing someone dead.
MIB – We know that MIB is, as he has possesed Locke on the island, and perhaps others.
Jacob – I believe that Jacob is going to use this power. Perhaps he is already using it on Sayid? Maybe that is why Sayid is alive, he is being possesed by Jacob. One thing is for sure, Jacob is going to confront MIB, and when he does, he would have to have possesed somebody, or how else could he do it?
Richard – “It’s good to see you out of those chains” tells me that Richard has died/is dead. The only thing I could think of when he said this was the skeleton on the black rock, as seen here
I think Richard is possesing the person who was chained up on the Black Rock. If this is true, why else would MIB say “It’s good to see you out of those chains”?
Thanks for reading, and hope you have some good comments