system
A chat on 4chan
human
In nature, as Charles Darwin and other scientists explained, it is the “survival of the fittest.” Every living thing competes for survival. In the web of life, the wolf gains strength and life by preying upon the deer, which in turn survives by eating grass. The chlorophyll in grass absorbs energy from the light of the sun. Every living entity survives by taking the energy of living flora and fauna. The Vampyre is simply training themselves to tap consciously into this Flow of energy.

Feeding on the radiated life-force of others is not unethical, any more than holding hands or hugging for warmth on a cold day is unethical. Vampyres feed for the purpose of survival and evolution, not to harm or exploit their donors. Vampyric feeding is a completely natural and ethical act.
gpt
I'm willing to gamble this is a larp. But if not, and this is indeed real, you given out a formula. So there's that, thank you. Another piece of the puzzle to my immortality may have fallen into my lap or I have a new mental chew toy to play with. You've given me somethign to research though I suspect it'll end up from some obscure video game

Call me vain, if you'd like, but as a mortal man (if I am indeed speaking to much older creature) I am doomed to die. But I am not hopeless, I think.