It got me thinking what makes Promethean knights so powerful like can they do die or rebuild themselves if they do have unlimited lives that would make them more experience right something like the movie from edge of tommorow
Get their essence away safely and yah, perpetual lives.
There not that good. Still taken down by some green space boi who lived 1/10000th of their live-span.
The Prometheans are a tool of attrition, wearing through the enemy’s resources as the Prometheans keep coming back indefinitely. Using that tactic, the individual Prometheans don’t need to be better fighters than the culmination of “a thousand lifetimes of planning” (The Librarian’s description of her role in the creation of Master Chief).
If they fight for long enough, eventually they will take down most enemies.
Yeah, the top class of the top class, at least for the forerunner composed version are worse fighters than the devolved humans they lorded over in the past. You know his suit is rated at lvl forerunners wouldn’t even give their civilians to be protected against the flood.
There only excuse for this is that the Librarian significantly weakens them. Their battle prowess in the terminals far outstrips Chief individually.
An alternate plausible explanation for the former-Forerunner Prometheans holding back against Humanity could be the Logic Plague. The Prometheans have the equivalent of a factory-reset every time their physical bodies are destroyed to prevent them from perpetuating the Logic Plague, but if they already had it before they were turned into constructs, then they may be holding back for the same reason the Flood holds back, that being that them winning isn’t part of the Precursors’ plan.
(The Didact had the Logic Plague long before the creation of the Prometheans, and he presumably communicated with all of them (especially given how the Forerunner commanders can share the senses of their subordinates in real time during battle), meaning they all plausibly were afflicted with the Logic Plague without knowing it.
So your saying the Didact basically back stabbed his own people trying to stop the spread of the flood
That’s the truly sinister nature of the Logic Plague. The Didact truly believed he was doing what was best to combat the Flood, but his logic was manipulated to lead him down avenues of thought that ultimately played into the Flood’s hands… tendrils.
Neither the Didact, nor any of his Prometheans had any idea that they were compromised.
Is the logic plague a thing from the books and did the last precursor create it?
Also can you explain how the Librarian played a part in the creation of MC?
Thank you 
I don’t know if they ever clarified that. When you first kill a Promethean there’s reference to a data purge.
In my head they’re like Necrons. Just going back to the Tomb World before coming back later. Perhaps in Halo a composed mind is more capable or resilient to such “death” than a sentinel?
The Logic Plague appears in the Forerunner Trilogy written by Greg Bear. The short version of it is that the Flood can force any thinking being (organic or artificial) to serve it after merely having a conversation with it. And the nefarious part is that the being with the Logic Plague doesn’t even know they have it, and that their decisions intended to combat the Flood will hence-forth play into the Flood’s hands.
After ancient humanity was de-evolved by the Forerunners after their war, the humans were implanted with genetically-coded commands, such as forcing them to be docile around Forerunners. However, the Librarian gave humanity genetically coded instructions to be carried out over many generations, guiding them to make specific advancements in their development that would ultimately bring them to the point where they could responsibly take control over all of the technology the Forerunners left behind.
The Prometheans were formerly people, while as I understand it, sentinels are merely constructs. But while in 40k’s lore the Necrons degrade each time they’re killed and brought back in a Tomb World, my understanding of the Prometheans is that they’re more like copies of the same master key, infinitely replaceable as long as you have the original. That’s why the Warden Eternal is able to use multiple bodies at the same time.
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So, Cortana has the Plague, as well as Chief and Arbiter (captured during H2)? Is this plague of Precursor origin or was it deviced by the Gravemind (same thing?)?
The novel: Halo Cryptum gives an interesting glimpse of what the Logic Plague actually does. The context is a young Forerunner named: Bornstellar Makes Eternal Lasting undergoes his first mutation (a metamorphesis that Forerunners go through multiple times over the course of their lives, in which an older Forerunner serves as a template, imparting part of their genetics, and the sum total of their knowledge onto the younger Forerunner). The older Forerunner that served as the template in this case is the Didact.
But when Bornstellar is adjusting to the effects of the mutation, he notices another mind in his own, that he specifically knows isn’t his own, not a past, present, or future version of himself. This other mind is the what the Forerunners call the Logic Plague, and it’s the Mind of a Precursor connecting to the mortal’s mind, able to manipulate the mortal in ways the mortal isn’t aware of. And of note, this utterly alien experience is so far beyond Bornstellar’s understanding that he can’t bring himself to think about it.
This is in Halo Cryptum, on pages 156-157. The language very clearly describes a being that exists outside of time entirely, with past, present and future being synonymous for it.
For a few minutes, I thought I experienced yet another voice in my head, not me, not my past me or any future me. It seemed to contain a great deal of knowledge, none of it of any use. It was knowledge that belonged to others from very far away, other existences where life and death were meaningless, light and dark twisted together, where the twin fists of time uncurled their fingers and joined in a clasp, so that nothing changed or ever would.
Of course that made no sense. Later, even thinking about it repulsed me.
The language is very much poetically describing an eternal being.
Life and death don’t have meaning outside of time, because everything mortal is simultaneously not yet conceived, living, and long since dead.
Light and darkness twist together because from the perspective outside of time, a location that’s lit at one time and dark at another is simultaneously both, since the whole of time is the present.
The twin fists of time are clearly the past and future, and them being clasped together and unchanging again reinforces the perspective from outside the flow of time.
If the Precursors are unchanging constants, then nothing can surprise them, because they’ve already witnessed it from the dawn of time. Everything the Flood is and does defacto has to be part of their plan.
Thank you for the detailed explanation! What I learned:
Logic Plague is definitely of Precursor origin and The Precursors are not to be messed with.
Master Chief and Arbiter probably have The Plague after interacting with the gravemind.