Suffering the information metastasis and chaos as the new attribute of knowledge generation, there is an individual impossibility to justify or generate the knowledge we manage, so we lie much of them, the vast majority over the confidence we have in some authorities opinions (teachers, mass media, workmates, friends and relatives…). We use relational networks as a knowledge and it proofs warehouse. As Karen Stephenson say “I store my knowledge in my friends”.
Ayer explained that all we know and believe propositions that we do not really have verified, what could be understood as a proper delegation to reliable and acceptable sources. In fact, having this kind of reliable sources is in the essence of social relationships “the genesis of a network is formed by trust” (drKaren), but it is not a good idea to exclude the scenario of a corroboration or authentication if there are doubts about the exactness, completeness or consistency. We need to rely on certain people or media, but not blindly.
Anyway it is more and more common that even having serious doubts over information, there is no way to verify it. An inevitable consequence is revealed then: having into account that post-modernism has render all sources of authority fuzzy and that individuals are not able to authenticate any piece of information, we loose the certitude. This inexistence of absolute certitude is
substantive in technological post-modernity quotidian life. That affects the trueness degree, the completeness or the coherence with the previously accepted assumptions without in any case renders these useless. Of course, one of the attributes of the post-modernity underlying in the knowledge society is the incertitude areas enlargement, as Kruger advise. Bye bye to lie comfortably over certitudes. As Phil Plait say (http://vimeo.com/14333708), there is no more magic, nor moral authority, nor certitude. A true missile.
 From Ramón Ignacio correa García “TICs entre el mesianismo y el prognatismo pedagógico” en (Aparici (Coord.), Conectados en el ciberespacio 2010)
 Karen Stephenson (Stephenson s.f.) citada en Siemens, Conectivismo: una teoría de aprendizaje para la era digital, cap5 de (Aparici (Coord.), Conectados en el Ciberespacio
 (Ayer, A.J. Lenguaje, verdad y lógica. Barcelona: Planeta-Agostini, 1986) Pág 38.
 “An incoherent system is necessarily unuseful? Not at all!” (Smullyan, Raymond. 5000 años AC y otras fantasías filosóficas. Madrid: Cátedra, 1989) Page 86
 Krüger, Karsten. “El concepto de sociedad del conocimiento.” Revista bibliográfica de geografía y ciencias sociales XI, no. 683 (10 2006): 14, página 7.