So with the newest eldar codex it seems there are some contradictions with regards to spirit stones/way stones, how they are formed and what exactly they are.
Reading through the most recent thread about eldar and spirit stones here, I found someone saying that way stones are the crystallized soul of an eldar trapped on the crime worlds during the fall. This is difficult to wrap my head around for several reasons.
First, if a way stone is the soul of a croneworld eldar, how is it that this soul escaped consumption by Slaanesh despite being right next to its crib when it was born?
Second, if it is the soul of a croneworld eldar who somehow wasn't eaten, is this to say that there is a finite supply of eldar souls? This makes little sense, as the. The eldar could never have increased beyond their initial population at "creation," without the vast majority of eldar being soulless drones.
Third, if way stones are the souls of crime world eldar, and there are only a finite number of unconsumed souls in existence, how do you transfer the soul from the stone to an eldar child?
Fourth, with the only means to ensure reproduction being limited to ridiculously dangerous journeys into their predator's back yard to recover hundreds of stones at a time (at most), how have the eldar not died out completely? If this were the only means of safe reproduction, the number of births across the craftworlds and exodite worlds would be limited to the number of souls tones recovered in that year, where deaths from natural causes, war and disaster would most certainly not be limited.
Fifth, if we accept all the previous points, the eldar would have a quickly shrinking population, and would have no need to colonize maiden worlds at all. This is directly contradicted in the fluff, which mentions several colonies of biel tan and iyanden.
In short, unless spirit stones are not a necessity for reproduction, or are able to be made artificially by manipulating warp energy, the eldar would presumably be a faction of a few still functioning wraith constructs.
So, my questions are the following: are there other ways of making way stones, are they necessary for safe reproduction, are those way stones that form in the eye of terror only formed by croneworld eldar souls, and how did croneworld eldar souls even avoid being consumed by Slaanesh in the first place?