Not when you have trained fighters like GSP,Mike Tyson, Fedor, etc etc these guys fight as full time jobs, they live eat sleep breath fighting. What dont you understand about that? They are PROFESSIONAL FIGHTERS!!! An un fighting trained person, whether he can bench 500lbs or not, has NO CHANCE!
I hear what you're saying ... and with all things being equal, sure, the pro fighter will emerge victorious. But there are MANY aspects to a real fight that need to be understood. And laws of nature. Poundstone is
SO much larger and
SO much stronger and his frame
SO much sturdier that, in all likelihood, a man like GSP would get destroyed through sheer force and blunt trauma.
I really like how MMA tap-outters want to redefine laws of mass and strength and brute force. We are not talking about the sport of fighting here, which an athlete like GSP engages in, but rather, a real-world altercation that happens spontaneously and with zero rules. There is zero doubt these MMA pros are gifted and dangerous men in a street fight, but up against someone so much their superior in size, strength and so forth, the technique and experience would be, at best, attributes that could conceivably keep them from getting dead.
Look at how a bear mauls a human. Like that. Again, lucky punch or kick? Sure, why not. However, chances are, the bear is gonna smother the adversary and beat him to a pulp. Too much force. Too much to overcome.
The natural world is full of harsh realities. Accept this.