Quote Originally Posted by Sepultra View Post
Dragon disciple states "already".
Already: prior to the present or at a particular time in the past.
The line is: "Any nondragon (cannot already be a half-dragon)."

No grammatical reading of this line makes it mean what you say it does.

In particular, trying to make the parentheticals be an ie statement results in a logical absurdity.

To dismiss an incoherence and then point out what this rule is actually doing (precluding the double application of half-dragon template benefits) is not the same thing as moving from an RAW to an RAI argument.