>>5186200Side note, the lore references three possible ways to become a perpetual.
One is to be born with it via genetic mutation, like the Emperor or Erda and his comrades. Sure there may be some psychic origin to said mutation, but its still a matter of genes.
The other is to be granted it via advanced technology, such as the alien tech of the Cabal, as with John Grammaticus who was not a natural born perpetual.
The third way is just by the grace and willpower of the Emperors psychic might, like he did for the guardians of the Noctis Labrynth. This perpetuality can even be willingly passed on.
However we do it, I hope we can earn the trust of the Emperor and Vulkan well enough that they are both willing to let Talos use his mind to make himself and Uzi become true perpetuals. When the Horus Heresy comes, we just need to watch out for any extremely powerful psychic artefacts like a blade made of Fulgurite or chaos weapons. But perpetuality will be just one method Talos should try to proof himself against death, the other being Talos-Secundus like Cawl does.
Always remember to backup our brain!