The explication is incredible. I just thought it just meant that it's not Tsukasa, but another character -- makes sense since that girl doesn't really resemble Tsukasa.
While there certainly is no such person as Tsukasa, one could argue that there is such a thing as *a* Tsukasa. Since Tsukasa exists solely as an illustration though, it's questionable as to whether or not this truly is a Tsukasa.
Even granting that a Tsukasa is by definition a drawing, and assuming that this is not a drawing of some random person who happens to have purple hair and a yellow bow, this still isn't a Tsukasa. It's a Tsukasa's head.
piespy: I sense converse fallacy. p -> q doesn't mean ~p -> ~q. I.e. you can conclude from "cogito ergo sum" that if X doesn't exist, then it doesn't think, but not that if X doesn't think, then it doesn't exist.
To further back up 0xCCBA696, let us assume that thinking automatically implies existence, and not thinking does not imply existence nor non-existence. Thus, given that you, clearly, were not thinking when you wrote that post, we have no way of knowing if YOU exist or not.
This is not a Tsukasa This is a parody of La Trahison des Images (The Treachery of Images) by René Magritte which has a picture of a pipe and reads "ceci n'est pas une pipe" or "This is not a pipe." The point is it ISN'T a pipe. It's an IMAGE of a pipe. The fact that Tsukasa herself is a fictional character makes any actual meaning behind this other than humor an exercise in existentialism.