Why are Concepts not Impermanent?

Why are Concepts not Impermanent? I found the below explanation in another forum. Are they Permanent? or not both? > Conventional reality (sammuti sacca/ pannatti) is just a concept and > not real. Non-real dhammas don’t exist and therefore cannot be anicca > or dukkha. > > According to Abhdhamma: > > - dhamma = paramata + pannatti > - paramata = sankhata + asankhata > - sankhata = citta + cetasika + rupa > - asnkhata = nibbana > - dhamma = citta + cetasika + rupa + nibbana + pannatti > > All the dhammas are anatta. Anatta means devoid of > essence/self/ownership/hegemony. > > Only the sankhata (compounded) is anicca-dukkha. Nibbana and Pannatti > are anatta only. > > Nibbana is real but not compounded. Therefore not anicca-dukkha. > Pannatti is non-real. Therefore not anicca-dukkha. > **In Theravada, Concept is an object (unreal object).** It is not the > Concept-formation of our mind. Mind and mental factors that form a > concept do arise and cease, but not the Concept. > The conceptualizing in mind is the impermanent one, but not the > Conceptual-object of Conceptualizing-mind. **Pannatti is an object.** This > fake object is perceived by the impermanent mind. > The colors that the eye sees in a movie are real, but not the concept > of “movie”. What is fake is the Object pointed by the Idea of “movie”. > **What “Conceptualizing” points to, is the Concept.** It is a fake object > that “Conceptualizing” points to. > > **The pointer exists, but “what is pointed” doesn’t exist.** > > So Concepts are not considered as anicca or dukkha. Conventional Reality is not Impermanent! Introduction to the Ultimacy (International Institute of Theravada)