It only assumes that if you have too much weight on your hands that it can help to move the mass back to increase the weight on the seat. It works in many applications like forklifts even. There is a range of balance to be sure but moving you head and shoulders forward will increase the weight on the hands. For generations we have discovered that while a nose down tilt on a saddle may relieve Perineum pressure on some riders a bit more will also cause stress on you wrists. There are other solutions t be sure. Increased core strength works as well. It allows one to move forward as a sprinter does but use the core to hold us up and off of the hands. Still at some point depending on ones fitness if the head and shoulders are too far forward the hands and wrists have to support more weight. On any given bike if all you do is raise the bars and it moves the head and shoulders back, lower the saddle and it moves the head and shoulders back, tilt the nose up and it moves the head and shoulders back, move the saddle back and yes ti loved the head and shoulders back. Even if you shorten the stem it pushes the head and shoulders back. Reverse the process and everything moves forward. It doesn't have to be a triangle but it has worked for me.