My understanding of it seems to be that CHIM is realizing that you are a merely a reflection of two absurdly interacting infinite forces (an echo of an echo of an echo within a Cavern of Irrelevance and Nothing), maintaining that realization, yet still asserting your existence as an individual, thus transcending the boundaries to which other mortals are constrained ("maintaining the Tower"). (This is the short version, of course). What it entails, according to what I've seen, is that you can do anything and that you have basically willed your way above everyone and everything in terms of power - even the et'Ada.
We KNOW that Vivec has it, and it's implied that there's a good chance that Talos had/has it (in addition to having reached the final subgradient). My question is whether it is indeed POSSIBLE for two individuals to have it. CHIM to me seems like a somewhat difficult and lonely position - if you're at the very top, who can you share it with? Acknowledging the existence of ANOTHER individual at the same metaphysical level seems to put a paradoxical limit on the power of something which by nature ought to have NO limits. If there are two Complete Masters, it stands to reason that neither of them are Complete Masters at all because they cannot master each other. Or is CHIM available to anyone with the wisdom and willpower to achieve it?
And if the latter is true, what would happen when two such unstoppable forces clashed, for whatever reason? Would their acknowledgment of something outside their influence and borders (yet transcendent in the exact same sense that they are) cause the Tower to fall apart? Would they merge as one being? Would the universe be destroyed? Or would they just bang endlessly against each other like a pair of rubber freight trains?
Or is this simply a wrongheaded question? If so, please explain exactly why I'm an idiot for throwing this question out there. I won't be offended if you do - I'm asking this question in the purely academic spirit of either finding a straight answer or sparking a debate among people in search of one.