[quote=@Ebil Bunny]
<Snipped quote by Jyoliod>

Not really, the first two assumptions were made according to how "normal magic" works, and the last assumption seemed somewhat logical according to my knowledge of coordinates.

I guess a way you could explain it a bit better is just to say that <I> is literally a fourth coordinate, rather than some special property.
[/quote]

The only issue with this suggestion falls into information addressed in the article later, but the very basic gist of it is that some layers do not have an 'x, y and z' value at all relative to the <I> value, instead their very presence in the <I> value implies the 'x, y and z' value, that is to say; the <I> replaces the 'x, y and z' values in such a way that the user can be converted back.

But I will take your suggestion into serious consideration when I start re-wording some aspects of my earlier parts of my article (such as the excerpt in the OP) as it'd be much easier to understand that way conceptually. - Thank you for your responses!