Deconstruction is an important tool in uniting theories - thus giving birth to an absolute theory, similarly to the theory of everything in physics itself yet to be discovered. Only after deconstructing every theory one can unite them eliminating all errors and thus keeping the essence. Now one must know all theories for, let us say, ethics. After deconstructing every theory of ethics one can come up with the absolute theory of ethics, a theory that is also practical.
(not only universal - objective)
Nevertheless only from an a priori knowledge, if the new theory was based on an a posteriori knowledge then all was in vain because the new information might be subjective not objective - universal truth.
After the deconstruction has been a success one can reconstruct all theories uniting them. So creating a new structure. Then after the process is complete one can re-deconstruct the new theory searching for errors, if it is asymmetric or does not express a golden truth.


Note: It is like knowing our genealogical tree - - from Us to Adam and Eve. Therefore, even though we do not have the knowledge of such a thing we do have knowledge of every theory, as I given example: all "theories on ethics". Knowing Adam and Eve we can know God, knowing God we have knowledge on the absolute and we are certain that God exists, or nature exist and we evolved. Now in this way we know nature itself, God Himself, thus the absolute theory itself.