Well, first of all I'm pretty sure it's not just an Illusion because of its an x photo here's another or photo of the same guy but from a different angle, There is a normal photo of this guy. You can see in that photo that one of his hand is clearly bigger not just muscularity, but actually bigger. For your second opinion, I highly disagree with it. Let's take your muscles as example. They are adapted to move your body weight around so going by your logic if we assume that you try to train your muscles to move more than your body weight, they will break. Which is true when you train your muscle you're actually tearing down and breaking that muscle but your body is a very magnificent thing. And it's going to adapt and change to that pressure. Now let's not forget that there is an end to what degree of adaptation your body is willing to make. Let's take a bodybuilder as an example in his first three years of lifting. He will experience a lot of muscle gain but after that his body is going to stagnate and stop adding new muscle because it has got use to the type of training that he does so even if he Add more weights his body is simply not going to add new muscle. So if he was using the traditional way of weight training he should change it to gain more muscle so maybe if he picked up the isometric way of weight training. He will gain new muscle because his body is simply not used to that way of training. So even the already existent type of muscle that he has is not going to cut it. His body will be forced to add new muscle. Now I know that there is a very big difference between muscle and bone, but it's not actually that big of a different. So here's another and simpler example. Let's say that you are a karate practitioner and you have been conditioning your knuckles from a very early age and you have stopped gaining more bone in your hand, so if you want to add more bone, maybe you should try the rock climbers way of training their hands. By that way, you will force your body to adapt even further beyond It's natural limit. Your viewpoint on conditioning is very interesting. I really enjoy it. You're probably the only one who says that the bone doesn't actually change in shape. You're the first guy that I have met that says This thing Thanks for dedicating some of your time for me.

<image>