Or perhaps it was because that world was clearly a hellhole, in which stupid Muggles still ruled and the most that Tom himself had done was to stir up the "purebloods" in a bid to take over Wizarding Britain. What petty ambitions. Here, he had acquired the Philosopher’s Stone from that tosser Flamel, who hadn’t even bothered to do anything with his long life, hiding away instead in his Devonshire estate. Tom was already deathless from the Horcrux, but now his body would not even age. No more would Grindelwald’s.