Possibly like the Mirror of Erised in the original the prerequisite is not wanting immortality? That would explain why Voldemort can’t make it, and why Flamel was so casual about death in Canon.
Epileptic trees (Given the reference to ‘hoarded lore’ maybe flamel’s desire is for knowledge preservation not self peservation?)
Or making the stone has some mental prerequisite, like casting Avada Kedavra or the True Patronus. One, in this case, which Voldemort cannot meet.
Possibly like the Mirror of Erised in the original the prerequisite is not wanting immortality? That would explain why Voldemort can’t make it, and why Flamel was so casual about death in Canon.
Epileptic trees (Given the reference to ‘hoarded lore’ maybe flamel’s desire is for knowledge preservation not self peservation?)