Well I originally thought to replace the arm, but decided to place it over the arm instead, it will attatch to the arm just under the armpit. The human shoulder is a very complex design, so in reality to replace an arm with a cyberlimb just under the armpit is more than likely where they would take the limb from, and in deed this is where most of todays prosthetic limbs fit too. of course later science could make a full cyberlimb including shoulder joint and spine strengthening attatchments and maybe even bone lacing to strengthen the skeleton and then in theory you could lift cars above your head. With this cyber limb thought you would get a stronger grip, enhanced digital dexterity and the ability to hold onto something without getting tired (at least in the grip). Plus it has a sleek design and comes in many different colours and finishes ;)