i agree with Proud, i mean i know you know some guys who dont even look like their strong and they surprise you how strong they are. Look at Anderson Silva , his a long lean SKINNY guy who doesnt even look scary but like Rich said, you cant get out of his grip. His just one of those natural strong guys, i work out and my friend his 2 years younger and he beats me in any strength competitions we have. Im sure Lesnar is way bigger but he was sick because of his steroid use.. i think Carwin is just more toned and more heavier with natural muscles and yes of courise he is mentally more stronger then brock in my opinion. I think the fight will go stand up for a LITTLE bit and whoever gets the take down FIRST will probably win the round. I would like to see carwin take down brock and pound him out.. i think brock just had it to easy in the ufc. 4-1 and already UFC HW champ? kinda ridiculous but i give credits to him because he did beat the right people.