It isn't a good move for Silva career wise or financially to move up a division, for me it increases his chances of a loss. Somebody will beat him, look at Chuck Liddell, for a while he looked unstopable, knocking out and beating the cream of the light heavyweight division, Ortiz/Couture/Sobral/Horn etc, then he got knocked out by Ramapage and his record became poor, losses to Evans/Franklin/Jardine and Rua, then he retired. Silva WILL lose, hes just having a good run, plus in my opinion the division isn't the strongest, i think some of the light heavyweights would give Silva more problems,