When I used to think about Voldemort’s horcruxes I imagined a soul divided in equal portions residing in the different horcruxes and Voldemort himself. I realised that this can’t be true in The Half-Blood Prince Slughorn describes making a horcrux as splitting ones soul in two. This means that when Riddle made his Diary into a horcrux he split his soul in half and physically removed one half from his body and placed it in the diary. This means that he only had half of his soul left when he made his next horcrux, Marvolo’s ring. This half would have been split in half leaving only a quarter in Voldemort’s body. This goes on and on the amount of soul remaining in Voldemort halving each time he makes a horcrux until he had only 1/128 or 0.78125% left in his body. As shown in the graph above. So next time you wonder why Voldemort could have done some of things he did, remember how little human he had left in him. I don’t know about you but I think that this is crazy.