You are close. As in solving any problem unknowns are represented by a variable. In solving the Creation - ID - Evolution mystery the various theories can be represented by "x" in an effort to rationalize or reject the supporting data. The possibility / probability / certainty of each of the three competing theories cannot yet be fully established, hence the often heated debate.
The part of my post you referenced was in quotes where I was quoting and responding to another poster. No problem, just wanted to clarify.