Yeah there's still work to do at WW, but I don't get why he's talking like it's all or nothing. Can't he fight Silva at a catchweight and then go back to WW to defend his title? I know he said if he goes to MW he's there to stay, but my understanding is that the fight would be at around 177-180lbs. He could take that fight at that weight and then be back at prime WW shape within a year I would imagine.
I don't know, it just seems like he's being a little hyper-analytical and dramatic about this. I mean nobody ever said he has to leave WW forever or anything like that. Then again, this is GSP we're talking about, so everything about his fighting life has to be 100% controlled and infallably calculated, so this is probably just more of the same.